Common Weakness Enumeration
CWE-284
DiscouragedImproper Access Control
Abstraction: Pillar · Status: Incomplete
The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
10686 vulnerabilities reference this CWE, most recent first.
CVE-2026-77538 (GCVE-0-2026-77538)
Vulnerability from cvelistv5 – Published: 2026-08-26 09:47 – Updated: 2026-08-26 12:55
VLAI
EPSS
VEX
Summary
A malicious actor with access to the network could exploit an Improper Access Control vulnerability found in UniFi Connect Application to escalate privileges within the UniFi Connect Application.
Severity
8.2 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-26 12:54 UTC
CWE
- CWE-284 - Improper Access Control - Generic
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Ubiquiti Inc | UniFi Connect Application |
Affected:
0 , < 3.24.22
(semver)
|
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CVE-2026-77536 (GCVE-0-2026-77536)
Vulnerability from cvelistv5 – Published: 2026-08-26 09:35 – Updated: 2026-08-27 03:56
VLAI
EPSS
VEX
Summary
A malicious actor with access to the network and low privileges could exploit an Improper Access Control vulnerability found in certain devices running UniFi OS to escalate privileges within such UniFi OS devices or instances.
Severity
9.9 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-26 00:00 UTC
CWE
- CWE-284 - Improper Access Control - Generic
Assigner
References
1 reference
Impacted products
13 products
| Vendor | Product | Version | |
|---|---|---|---|
| Ubiquiti Inc | UniFi OS Server |
Affected:
0 , < 5.1.37
(semver)
|
|
| Ubiquiti Inc | Cloud Keys |
Affected:
0 , < 5.1.31
(semver)
|
|
| Ubiquiti Inc | Network Video Recorders |
Affected:
0 , < 5.1.31
(semver)
|
|
| Ubiquiti Inc | Enterprise Network Video Recorders |
Affected:
0 , < 5.1.31
(semver)
|
|
| Ubiquiti Inc | Enterprise Network Attached Storage |
Affected:
0 , < 5.1.31
(semver)
|
|
| Ubiquiti Inc | Dream Machines |
Affected:
0 , < 5.1.31
(semver)
|
|
| Ubiquiti Inc | Enterprise Firewall Core |
Affected:
0 , < 5.1.31
(semver)
|
|
| Ubiquiti Inc | Dream Routers |
Affected:
0 , < 5.1.31
(semver)
|
|
| Ubiquiti Inc | Enterprise Fortress Gateway |
Affected:
0 , < 5.1.31
(semver)
|
|
| Ubiquiti Inc | Cloud Gateways |
Affected:
0 , < 5.1.31
(semver)
|
|
| Ubiquiti Inc | Dream Wall |
Affected:
0 , < 5.1.31
(semver)
|
|
| Ubiquiti Inc | Express 7 |
Affected:
0 , < 5.1.31
(semver)
|
|
| Ubiquiti Inc | Network Attached Storage |
Affected:
0 , < 5.1.32
(semver)
|
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CVE-2026-77534 (GCVE-0-2026-77534)
Vulnerability from cvelistv5 – Published: 2026-08-26 09:21 – Updated: 2026-08-27 03:56
VLAI
EPSS
VEX
Summary
A malicious actor with access to the network and low privileges could exploit an Improper Access Control vulnerability found in certain devices running UniFi OS to escalate privileges within such UniFi OS devices or instances.
Severity
9.9 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-26 00:00 UTC
CWE
- CWE-284 - Improper Access Control - Generic
Assigner
References
1 reference
Impacted products
13 products
| Vendor | Product | Version | |
|---|---|---|---|
| Ubiquiti Inc | UniFi OS Server |
Affected:
0 , < 5.1.37
(semver)
|
|
| Ubiquiti Inc | Cloud Keys |
Affected:
0 , < 5.1.31
(semver)
|
|
| Ubiquiti Inc | Network Video Recorders |
Affected:
0 , < 5.1.31
(semver)
|
|
| Ubiquiti Inc | Enterprise Network Video Recorders |
Affected:
0 , < 5.1.31
(semver)
|
|
| Ubiquiti Inc | Enterprise Network Attached Storage |
Affected:
0 , < 5.1.31
(semver)
|
|
| Ubiquiti Inc | Dream Machines |
Affected:
0 , < 5.1.31
(semver)
|
|
| Ubiquiti Inc | Enterprise Firewall Core |
Affected:
0 , < 5.1.31
(semver)
|
|
| Ubiquiti Inc | Dream Routers |
Affected:
0 , < 5.1.31
(semver)
|
|
| Ubiquiti Inc | Enterprise Fortress Gateway |
Affected:
0 , < 5.1.31
(semver)
|
|
| Ubiquiti Inc | Cloud Gateways |
Affected:
0 , < 5.1.31
(semver)
|
|
| Ubiquiti Inc | Dream Wall |
Affected:
0 , < 5.1.31
(semver)
|
|
| Ubiquiti Inc | Express 7 |
Affected:
0 , < 5.1.31
(semver)
|
|
| Ubiquiti Inc | Network Attached Storage |
Affected:
0 , < 5.1.32
(semver)
|
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CVE-2026-77487 (GCVE-0-2026-77487)
Vulnerability from cvelistv5 – Published: 2026-09-08 17:18 – Updated: 2026-10-08 18:19
VLAI
EPSS
VEX
Title
SQL Server Elevation of Privilege Vulnerability
Summary
Improper access control in SQL Server allows an authorized attacker to elevate privileges over a network.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-08 00:00 UTC
CWE
- CWE-284 - Improper Access Control
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerabi… | vendor-advisorypatch |
Impacted products
8 products
| Vendor | Product | Version | |
|---|---|---|---|
| Microsoft | Microsoft SQL Server 2017 (CU 31) |
Affected:
14.0.0 , < 14.0.3550.4
(custom)
|
|
| Microsoft | Microsoft SQL Server 2017 (GDR) |
Affected:
14.0.0 , < 14.0.2130.4
(custom)
|
|
| Microsoft | Microsoft SQL Server 2019 (CU 32) |
Affected:
15.0.0.0 , < 15.0.4490.9
(custom)
|
|
| Microsoft | Microsoft SQL Server 2019 (GDR) |
Affected:
15.0.0 , < 15.0.2190.7
(custom)
|
|
| Microsoft | Microsoft SQL Server 2022 (CU 26) |
Affected:
16.0.0.0 , < 16.0.4275.2
(custom)
|
|
| Microsoft | Microsoft SQL Server 2022 (GDR) |
Affected:
16.0.0 , < 16.0.1200.5
(custom)
|
|
| Microsoft | Microsoft SQL Server 2025 (CU8) |
Affected:
17.0.0.0 , < 17.0.4085.5
(custom)
|
|
| Microsoft | Microsoft SQL Server 2025 for x64-based Systems (GDR) |
Affected:
17.0.1050.2 , < 17.0.1135.8
(custom)
|
Date Public
2026-09-08 14:00
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CVE-2026-77321 (GCVE-0-2026-77321)
Vulnerability from cvelistv5 – Published: 2026-09-24 18:04 – Updated: 2026-10-05 15:32
VLAI
EPSS
VEX
Title
TREK MCP trip summary bypasses delegated OAuth read scopes
Summary
TREK is a collaborative travel planner. Prior to 3.3.0, the get_trip_summary tool in server/src/mcp/tools/trips.ts is registered for scoped OAuth MCP tokens without requiring trips:read and returns core trip summary data regardless of the delegated scopes. A token granted only an unrelated capability, such as weather:read, can receive trip metadata, member email addresses from server/src/services/tripService.ts, itinerary days, and accommodations for every trip accessible to the token's user. Cross-user trip authorization remains enforced, but the missing scope check defeats the consented least-privilege boundary and exposes trip content and third-party contact information to an MCP client that was not authorized to read it. This issue is fixed in version 3.3.0.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-05 14:47 UTC
CWE
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/liketrek/TREK/security/advisor… | x_refsource_CONFIRM |
| https://github.com/liketrek/TREK/pull/1520 | x_refsource_MISC |
| https://github.com/liketrek/TREK/commit/19064b391… | x_refsource_MISC |
| https://github.com/liketrek/TREK/releases/tag/v3.3.0 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| mauriceboe | TREK |
Affected:
< 3.3.0
|
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CVE-2026-77320 (GCVE-0-2026-77320)
Vulnerability from cvelistv5 – Published: 2026-09-24 18:05 – Updated: 2026-09-29 03:05
VLAI
EPSS
VEX
Title
TREK: Public trip share link ignores the `share_map` permission server-side (client-enforced authorization → itinerary/location disclosure)
Summary
TREK is a collaborative travel planner. Prior to 3.3.0, getSharedTripData in server/src/services/shareService.ts returns days, assignments, dayNotes, and places through GET /api/shared/:token even when the trip owner disables share_map. The client hides the map, but the public JSON response still includes the itinerary and place names, coordinates, addresses, descriptions, notes, and prices. Anyone holding the valid share token can therefore read location and route information that the owner explicitly chose not to share, although the random token remains required and the flaw does not permit modification. This issue is fixed in version 3.3.0.
Severity
5.3 (Medium)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 03:05 UTC
CWE
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/liketrek/TREK/security/advisor… | x_refsource_CONFIRM |
| https://github.com/liketrek/TREK/pull/1520 | x_refsource_MISC |
| https://github.com/liketrek/TREK/commit/19064b391… | x_refsource_MISC |
| https://github.com/liketrek/TREK/releases/tag/v3.3.0 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| mauriceboe | TREK |
Affected:
< 3.3.0
|
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CVE-2026-77252 (GCVE-0-2026-77252)
Vulnerability from cvelistv5 – Published: 2026-09-22 17:54 – Updated: 2026-09-23 14:38
VLAI
EPSS
VEX
Title
MCP Atlassian: JIRA_PROJECTS_FILTER and CONFLUENCE_SPACES_FILTER can be bypassed in search tools
Summary
MCP Atlassian is a Model Context Protocol (MCP) server for Atlassian products (Confluence and Jira). Prior to 0.22.0, caller-supplied projects_filter and spaces_filter arguments can replace administrator-configured allowlists, and caller-provided project or space clauses can suppress the configured restriction. A caller can search projects or spaces outside the intended boundary when the configured Atlassian credentials can access them. The advisory traces the vulnerable input and processing flow through JIRA_PROJECTS_FILTER, CONFLUENCE_SPACES_FILTER, projects_filter, spaces_filter, SearchMixin.search_issues, and SearchMixin.search, which identify the affected entry points, controls, and code paths. This issue is fixed in version 0.22.0.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-22 18:58 UTC
CWE
- CWE-284 - Improper Access Control
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/sooperset/mcp-atlassian/securi… | x_refsource_CONFIRM |
| https://github.com/sooperset/mcp-atlassian/pull/1448 | x_refsource_MISC |
| https://github.com/sooperset/mcp-atlassian/commit… | x_refsource_MISC |
| https://github.com/sooperset/mcp-atlassian/releas… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| sooperset | mcp-atlassian |
Affected:
< 0.22.0
|
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CVE-2026-77170 (GCVE-0-2026-77170)
Vulnerability from cvelistv5 – Published: 2026-09-18 01:26 – Updated: 2026-09-18 19:41
VLAI
EPSS
VEX
Summary
The Deck config API allows authenticated users to set board-scoped configuration keys for arbitrary board IDs without validating whether the user owns or has permission to manage the referenced board.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-18 19:41 UTC
CWE
- CWE-284 - Improper Access Control - Generic
Assigner
References
1 reference
Impacted products
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CVE-2026-77169 (GCVE-0-2026-77169)
Vulnerability from cvelistv5 – Published: 2026-09-18 01:26 – Updated: 2026-09-18 19:42
VLAI
EPSS
VEX
Summary
A vulnerability in the team folders (formerly group folders) app when used in combination with the workspace app allowed API/REST-only delegated administrators to bypass folder-level authorization controls. The workspace app enables organizations to delegate limited administrative privileges for team folder management via API/REST only, restricting access to folders for which the admin has advanced permissions.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-18 19:42 UTC
CWE
- CWE-284 - Improper Access Control - Generic
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Nextcloud | Team Folders |
Affected:
13.0.0 , < 22.0.0
(semver)
|
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CVE-2026-77165 (GCVE-0-2026-77165)
Vulnerability from cvelistv5 – Published: 2026-09-21 15:25 – Updated: 2026-09-21 18:44
VLAI
EPSS
VEX
Summary
File owners were unable to unlock TYPE_TOKEN locks placed by other users, leaving files permanently locked with no recovery path outside of the database.
Severity
6.5 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-21 18:44 UTC
CWE
- CWE-284 - Improper Access Control - Generic
Assigner
References
1 reference
Impacted products
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Mitigation MIT-1
Architecture and Design
Operation
Very carefully manage the setting, management, and handling of privileges. Explicitly manage trust zones in the software.
Mitigation MIT-46
Architecture and Design
Strategy: Separation of Privilege
- Compartmentalize the system to have "safe" areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area.
- Ensure that appropriate compartmentalization is built into the system design, and the compartmentalization allows for and reinforces privilege separation functionality. Architects and designers should rely on the principle of least privilege to decide the appropriate time to use privileges and the time to drop privileges.
CAPEC-19: Embedding Scripts within Scripts
An adversary leverages the capability to execute their own script by embedding it within other scripts that the target software is likely to execute due to programs' vulnerabilities that are brought on by allowing remote hosts to execute scripts.
CAPEC-441: Malicious Logic Insertion
An adversary installs or adds malicious logic (also known as malware) into a seemingly benign component of a fielded system. This logic is often hidden from the user of the system and works behind the scenes to achieve negative impacts. With the proliferation of mass digital storage and inexpensive multimedia devices, Bluetooth and 802.11 support, new attack vectors for spreading malware are emerging for things we once thought of as innocuous greeting cards, picture frames, or digital projectors. This pattern of attack focuses on systems already fielded and used in operation as opposed to systems and their components that are still under development and part of the supply chain.
CAPEC-478: Modification of Windows Service Configuration
An adversary exploits a weakness in access control to modify the execution parameters of a Windows service. The goal of this attack is to execute a malicious binary in place of an existing service.
CAPEC-479: Malicious Root Certificate
An adversary exploits a weakness in authorization and installs a new root certificate on a compromised system. Certificates are commonly used for establishing secure TLS/SSL communications within a web browser. When a user attempts to browse a website that presents a certificate that is not trusted an error message will be displayed to warn the user of the security risk. Depending on the security settings, the browser may not allow the user to establish a connection to the website. Adversaries have used this technique to avoid security warnings prompting users when compromised systems connect over HTTPS to adversary controlled web servers that spoof legitimate websites in order to collect login credentials.
CAPEC-502: Intent Spoof
An adversary, through a previously installed malicious application, issues an intent directed toward a specific trusted application's component in an attempt to achieve a variety of different objectives including modification of data, information disclosure, and data injection. Components that have been unintentionally exported and made public are subject to this type of an attack. If the component trusts the intent's action without verififcation, then the target application performs the functionality at the adversary's request, helping the adversary achieve the desired negative technical impact.
CAPEC-503: WebView Exposure
An adversary, through a malicious web page, accesses application specific functionality by leveraging interfaces registered through WebView's addJavascriptInterface API. Once an interface is registered to WebView through addJavascriptInterface, it becomes global and all pages loaded in the WebView can call this interface.
CAPEC-536: Data Injected During Configuration
An attacker with access to data files and processes on a victim's system injects malicious data into critical operational data during configuration or recalibration, causing the victim's system to perform in a suboptimal manner that benefits the adversary.
CAPEC-546: Incomplete Data Deletion in a Multi-Tenant Environment
An adversary obtains unauthorized information due to insecure or incomplete data deletion in a multi-tenant environment. If a cloud provider fails to completely delete storage and data from former cloud tenants' systems/resources, once these resources are allocated to new, potentially malicious tenants, the latter can probe the provided resources for sensitive information still there.
CAPEC-550: Install New Service
When an operating system starts, it also starts programs called services or daemons. Adversaries may install a new service which will be executed at startup (on a Windows system, by modifying the registry). The service name may be disguised by using a name from a related operating system or benign software. Services are usually run with elevated privileges.
CAPEC-551: Modify Existing Service
When an operating system starts, it also starts programs called services or daemons. Modifying existing services may break existing services or may enable services that are disabled/not commonly used.
CAPEC-552: Install Rootkit
An adversary exploits a weakness in authentication to install malware that alters the functionality and information provide by targeted operating system API calls. Often referred to as rootkits, it is often used to hide the presence of programs, files, network connections, services, drivers, and other system components.
CAPEC-556: Replace File Extension Handlers
When a file is opened, its file handler is checked to determine which program opens the file. File handlers are configuration properties of many operating systems. Applications can modify the file handler for a given file extension to call an arbitrary program when a file with the given extension is opened.
CAPEC-558: Replace Trusted Executable
An adversary exploits weaknesses in privilege management or access control to replace a trusted executable with a malicious version and enable the execution of malware when that trusted executable is called.
CAPEC-562: Modify Shared File
An adversary manipulates the files in a shared location by adding malicious programs, scripts, or exploit code to valid content. Once a user opens the shared content, the tainted content is executed.
CAPEC-563: Add Malicious File to Shared Webroot
An adversaries may add malicious content to a website through the open file share and then browse to that content with a web browser to cause the server to execute the content. The malicious content will typically run under the context and permissions of the web server process, often resulting in local system or administrative privileges depending on how the web server is configured.
CAPEC-564: Run Software at Logon
Operating system allows logon scripts to be run whenever a specific user or users logon to a system. If adversaries can access these scripts, they may insert additional code into the logon script. This code can allow them to maintain persistence or move laterally within an enclave because it is executed every time the affected user or users logon to a computer. Modifying logon scripts can effectively bypass workstation and enclave firewalls. Depending on the access configuration of the logon scripts, either local credentials or a remote administrative account may be necessary.
CAPEC-578: Disable Security Software
An adversary exploits a weakness in access control to disable security tools so that detection does not occur. This can take the form of killing processes, deleting registry keys so that tools do not start at run time, deleting log files, or other methods.