CWE-862
Allowed-with-ReviewMissing Authorization
Abstraction: Class · Status: Incomplete
The product does not perform an authorization check when an actor attempts to access a resource or perform an action.
17595 vulnerabilities reference this CWE, most recent first.
CVE-2026-91929 (GCVE-0-2026-91929)
Vulnerability from cvelistv5 – Published: 2026-09-15 15:17 – Updated: 2026-09-15 15:44- CWE-862 - Missing Authorization
| URL | Tags |
|---|---|
| https://github.com/FlowiseAI/Flowise/security/adv… | vendor-advisory |
| https://www.vulncheck.com/advisories/flowise-befo… | third-party-advisory |
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CVE-2026-91924 (GCVE-0-2026-91924)
Vulnerability from cvelistv5 – Published: 2026-09-15 11:00 – Updated: 2026-09-24 14:22- CWE-862 - Missing Authorization
| URL | Tags |
|---|---|
| https://github.com/sosedoff/pgweb/issues/869 | issue-tracking |
| https://github.com/sosedoff/pgweb | product |
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| https://github.com/sosedoff/pgweb/blob/6b0b0244d1… | technical-description |
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CVE-2026-91846 (GCVE-0-2026-91846)
Vulnerability from cvelistv5 – Published: 2026-09-15 08:36 – Updated: 2026-09-15 13:50| URL | Tags |
|---|---|
| https://github.com/MISP/MISP/commit/334d53709 | patch |
qwen3.8:27b
advisory
bcp-05-x-01bcp-05-x-02
Draft vulnerability metadata was generated from a git-format patch using an Ollama-hosted language model. Human validation is required before publication.
| Model | Source | Identifier |
|---|---|---|
| qwen3.8:27b | ollama | qwen3.8:27b |
- Generator
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patch2vuln.pyon 2026-09-15 08:32 - Model
qwen3.8:27b- Input
-
https://github.com/MISP/MISP/commit/334d53709.patch
259d46cb7727… - Confidence
- medium
| Commit | Subject | Patch SHA-256 |
|---|---|---|
334d53709597
|
fix: [acl] Authorise the object a collection element points | 259d46cb7727… |
Fix summary
The fix introduces a dedicated __assertCanUseElements() authorization guard that is invoked in the beforeSave callback of the add() CRUD path (covering both form and REST submission) and in addElementToCollection(). For each element UUID, the method resolves the element type (deducing it if the caller omitted the field, preventing bypass by omission) and performs an ACL-aware lookup: for Events it calls fetchSimpleEvent() scoped to the current user, and for GalaxyClusters it calls fetchGalaxyClusters() with the user context. If the object does not exist or the caller lacks access, a NotFoundException is raised and the save is aborted. This ensures that no collection element can reference an object the caller is not authorized to read.
Patch summary
In app/Controller/CollectionElementsController.php, a new private method __assertCanUseElements() is added (approximately 45 lines) that iterates over normalized element UUIDs, deduces the element type when not explicitly supplied, and performs an ACL-scoped existence check via Event::fetchSimpleEvent() or GalaxyCluster::fetchGalaxyClusters(). The add() method's beforeSave closure is modified to call this guard before persisting the row. The addElementToCollection() method is refactored to replace its inline Event-only check with a call to the same __assertCanUseElements() helper, gaining GalaxyCluster coverage. Net change: 53 insertions, 12 deletions in one file.
CVSS rationale
AV:N: MISP is a network-accessible web application. AC:L: The attacker simply submits a UUID to the existing add endpoint; no race condition or complex bypass is needed. AT:N: No prior compromise or user interaction is required. PR:L: An authenticated MISP user with permission to manage collection elements is required. UI:N: No victim interaction is needed; the disclosure occurs when the attacker views their own collection. VC:L: The attacker gains read access to Events or GalaxyClusters belonging to other organizations or restricted scopes. VI:L: Unauthorized references are persisted in the collection, altering data integrity. VA:N: No availability impact. SC/SI/SA:N: No impact on adjacent systems.
Weakness rationale
- CWE-862 The add() method stored collection element UUIDs without performing any authorization check on the referenced object. The fix adds an explicit ACL verification step before persistence, confirming the original code lacked the required authorization control.
- CWE-639 The attacker-supplied UUID (a user-controlled key) was accepted and stored without verifying that the caller held a valid access grant for that specific object, allowing reference to objects outside the caller's authorized scope.
Assumptions to verify
- The affected version range is not explicitly stated in the patch; the tag boundary indicates the fix is 204 commits after v2.5.46, but the exact fixed release version is unconfirmed.
- PR:L assumes the attacker needs only a basic authenticated MISP account with collection-element management rights; if a higher privilege level is required, PR should be raised.
- The commit message references 'V17' as a related disclosure scenario; this is treated as internal context and not used to expand the affected scope.
- The deduceType() fallback path is assumed to be reachable by an attacker omitting the element_type field, which the patch explicitly guards against.
Model comparison
Selected qwen3.8:27b
by deterministic-consensus-v1
The selected result is closest to model consensus; this heuristic does not establish factual correctness and human review remains required.
| Model | Score | Agreement | Confidence | Assumptions |
|---|---|---|---|---|
qwen3.8:27b |
6 | 9 | medium | 4 |
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"cvssRationale": "AV:N: MISP is a network-accessible web application. AC:L: The attacker simply submits a UUID to the existing add endpoint; no race condition or complex bypass is needed. AT:N: No prior compromise or user interaction is required. PR:L: An authenticated MISP user with permission to manage collection elements is required. UI:N: No victim interaction is needed; the disclosure occurs when the attacker views their own collection. VC:L: The attacker gains read access to Events or GalaxyClusters belonging to other organizations or restricted scopes. VI:L: Unauthorized references are persisted in the collection, altering data integrity. VA:N: No availability impact. SC/SI/SA:N: No impact on adjacent systems.",
"draft": false,
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CVE-2026-91825 (GCVE-0-2026-91825)
Vulnerability from cvelistv5 – Published: 2026-09-15 08:06 – Updated: 2026-09-15 14:19- CWE-862 - Missing Authorization
| URL | Tags |
|---|---|
| https://github.com/MISP/MISP/commit/cf3ee4026 | patch |
qwen3.8:27b
advisory
bcp-05-x-01bcp-05-x-02
Draft vulnerability metadata was generated from a git-format patch using an Ollama-hosted language model. Human validation is required before publication.
| Model | Source | Identifier |
|---|---|---|
| qwen3.8:27b | ollama | qwen3.8:27b |
- Generator
-
patch2vuln.pyon 2026-09-15 07:50 - Model
qwen3.8:27b- Input
-
https://github.com/MISP/MISP/commit/cf3ee4026.patch
5229e7ba08a4… - Confidence
- high
| Commit | Subject | Patch SHA-256 |
|---|---|---|
cf3ee40265ee
|
fix: [security] Authorise the event sharing group when | 5229e7ba08a4… |
Fix summary
The fix adds an explicit authorization check for the sharing_group_id in the code path where the distribution field is omitted from the edit request. In the controller, if no distribution is submitted but a sharing_group_id is present and differs from the stored value, the user's access to that sharing group is verified via checkIfCanBeUsed before the edit proceeds. In the model's _edit method, a parallel check via checkIfAuthorised is added for the same condition, returning an error if the user is not authorized for the submitted sharing group. This closes the gap where omitting the distribution field bypassed the existing authorization gate.
Patch summary
Two files are modified with 25 lines of insertions. In EventsController.php (edit method), a new else-if branch is added after the existing distribution-handling logic: when distribution is not set, sharing_group_id is non-empty, and it differs from the stored value, the code calls SharingGroup->checkIfCanBeUsed() and throws MethodNotAllowedException on failure. In Event.php (_edit method), a new elseif branch is added for the case where distribution is not set in the submitted data but sharing_group_id is present; it calls SharingGroup->checkIfAuthorised() and returns an error array if the user lacks access. Both additions are narrowly scoped to the omitted-distribution path and do not alter behavior for explicitly stated non-4 distribution values.
CVSS rationale
AV:N: MISP is a network-accessible web application. AC:L: The attack requires only omitting a field from a standard edit request; no race condition or complex manipulation is needed. AT:N: No prior user interaction or attack preparation is required. PR:L: The attacker must be an authenticated user with edit access to at least one event. UI:N: No victim interaction is needed. VC:L: Event data may be exposed to members of the unauthorized sharing group. VI:H: The event's sharing group assignment is modified without authorization, directly compromising data integrity. VA:N: No availability impact. SC/SI/SA: No secondary system impact is evidenced; the impact is confined to the MISP instance's data integrity and the confidentiality of the affected event record.
Weakness rationale
- CWE-862 The authorization check for the sharing_group_id was conditionally executed only when the distribution field was explicitly set to 4. By omitting the distribution field, an attacker bypassed the authorization gate entirely, allowing an unauthorized sharing group assignment to be persisted. The check existed but was not applied to all code paths that could result in the sharing group being saved.
Assumptions to verify
- The affected version range is inferred from the tag_version_boundary (v2.5.46 with 216 commits after fix); no explicit fixed version tag is provided in the metadata, so the boundary is approximate.
- The attacker must already possess authenticated edit access to at least one event in MISP; the vulnerability does not grant access to users without any event edit permission.
- The impact assessment assumes the unauthorized sharing group contains other users who would gain visibility into the event data; if the target group is empty, the confidentiality impact is reduced.
- The patch was found during internal review per the commit message; no external reporter or finder is identified in the metadata.
Model comparison
Selected qwen3.8:27b
by deterministic-consensus-v1
The selected result is closest to model consensus; this heuristic does not establish factual correctness and human review remains required.
| Model | Score | Agreement | Confidence | Assumptions |
|---|---|---|---|---|
qwen3.8:27b |
7 | 9 | high | 4 |
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CVE-2026-91774 (GCVE-0-2026-91774)
Vulnerability from cvelistv5 – Published: 2026-09-15 01:20 – Updated: 2026-09-24 14:22- CWE-862 - Missing Authorization
| URL | Tags |
|---|---|
| https://github.com/YaoApp/yao/issues/1553 | issue-tracking |
| https://github.com/YaoApp/yao/blob/v1.0.0-rc22/op… | technical-description |
| https://github.com/YaoApp/yao/blob/v1.0.0-rc22/op… | technical-description |
| https://github.com/YaoApp/yao | product |
| https://www.vulncheck.com/advisories/yao-through-… | third-party-advisory |
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CVE-2026-91707 (GCVE-0-2026-91707)
Vulnerability from cvelistv5 – Published: 2026-09-18 06:38 – Updated: 2026-09-18 14:31- CWE-862 - Missing Authorization
| Vendor | Product | Version | |
|---|---|---|---|
| Elegant Themes | Divi |
Affected:
0 , ≤ 5.11.1
(semver)
|
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CVE-2026-91167 (GCVE-0-2026-91167)
Vulnerability from cvelistv5 – Published: 2026-09-21 18:54 – Updated: 2026-09-22 15:40- CWE-862 - Missing Authorization
| URL | Tags |
|---|---|
| https://github.com/warp-tech/warpgate/security/ad… | x_refsource_CONFIRM |
| https://github.com/warp-tech/warpgate/commit/c020… | x_refsource_MISC |
| https://github.com/warp-tech/warpgate/releases/ta… | x_refsource_MISC |
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CVE-2026-91160 (GCVE-0-2026-91160)
Vulnerability from cvelistv5 – Published: 2026-09-24 16:42 – Updated: 2026-10-05 15:33- CWE-862 - Missing Authorization
| URL | Tags |
|---|---|
| https://github.com/rmyndharis/OpenWA/security/adv… | x_refsource_CONFIRM |
| https://github.com/rmyndharis/OpenWA/pull/1602 | x_refsource_MISC |
| https://github.com/rmyndharis/OpenWA/commit/acc23… | x_refsource_MISC |
| https://github.com/rmyndharis/OpenWA/commit/b9d9e… | x_refsource_MISC |
| https://github.com/rmyndharis/OpenWA/releases/tag… | x_refsource_MISC |
| Vendor | Product | Version | |
|---|---|---|---|
| rmyndharis | OpenWA |
Affected:
< 0.23.5
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CVE-2026-91108 (GCVE-0-2026-91108)
Vulnerability from cvelistv5 – Published: 2026-10-03 05:29 – Updated: 2026-10-03 15:42- CWE-862 - Missing Authorization
| Vendor | Product | Version | |
|---|---|---|---|
| alttextai | Alt Text AI – Automatically generate image alt text for SEO and accessibility |
Affected:
0 , ≤ 1.10.41
(semver)
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CVE-2026-91092 (GCVE-0-2026-91092)
Vulnerability from cvelistv5 – Published: 2026-09-22 07:41 – Updated: 2026-09-23 18:46- CWE-862 - Missing Authorization
| Vendor | Product | Version | |
|---|---|---|---|
| tomdever | wpForo Forum |
Affected:
0 , ≤ 3.1.5
(semver)
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"cvssV3_1": {
"baseScore": 4.3,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-862",
"description": "CWE-862 Missing Authorization",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-22T07:41:13.210Z",
"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"shortName": "Wordfence"
},
"references": [
{
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/97084759-a8fb-4b26-a6fa-93d005b1110e?source=cve"
},
{
"url": "https://plugins.trac.wordpress.org/browser/wpforo/tags/3.1.5/classes/Posts.php#L319"
},
{
"url": "https://plugins.trac.wordpress.org/browser/wpforo/tags/3.1.5/includes/functions.php#L2820"
},
{
"url": "https://plugins.trac.wordpress.org/browser/wpforo/tags/3.1.5/classes/Members.php#L3704"
},
{
"url": "https://plugins.trac.wordpress.org/browser/wpforo/tags/3.1.5/classes/Actions.php#L806"
},
{
"url": "https://plugins.trac.wordpress.org/browser/wpforo/tags/3.1.5/includes/hooks.php#L1004"
},
{
"url": "https://plugins.trac.wordpress.org/changeset?reponame=\u0026old=3702319%40wpforo\u0026new=3702319%40wpforo"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-09-14T18:24:03.000Z",
"value": "Vendor Notified"
},
{
"lang": "en",
"time": "2026-09-21T19:01:21.000Z",
"value": "Disclosed"
}
],
"title": "wpForo Forum \u003c= 3.1.5 - Missing Authorization to Authenticated (Subscriber+) Guest Post Takeover via wpforo_post_edit Action / Forged comment_author_email Cookie"
}
},
"cveMetadata": {
"assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"assignerShortName": "Wordfence",
"cveId": "CVE-2026-91092",
"datePublished": "2026-09-22T07:41:13.210Z",
"dateReserved": "2026-09-14T18:11:51.829Z",
"dateUpdated": "2026-09-23T18:46:53.727Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
Mitigation
- Divide the product into anonymous, normal, privileged, and administrative areas. Reduce the attack surface by carefully mapping roles with data and functionality. Use role-based access control (RBAC) [REF-229] to enforce the roles at the appropriate boundaries.
- Note that this approach may not protect against horizontal authorization, i.e., it will not protect a user from attacking others with the same role.
Mitigation
Ensure that access control checks are performed related to the business logic. These checks may be different than the access control checks that are applied to more generic resources such as files, connections, processes, memory, and database records. For example, a database may restrict access for medical records to a specific database user, but each record might only be intended to be accessible to the patient and the patient's doctor [REF-7].
Mitigation MIT-4.4
Strategy: Libraries or Frameworks
- Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
- For example, consider using authorization frameworks such as the JAAS Authorization Framework [REF-233] and the OWASP ESAPI Access Control feature [REF-45].
Mitigation
- For web applications, make sure that the access control mechanism is enforced correctly at the server side on every page. Users should not be able to access any unauthorized functionality or information by simply requesting direct access to that page.
- One way to do this is to ensure that all pages containing sensitive information are not cached, and that all such pages restrict access to requests that are accompanied by an active and authenticated session token associated with a user who has the required permissions to access that page.
Mitigation
Use the access control capabilities of your operating system and server environment and define your access control lists accordingly. Use a "default deny" policy when defining these ACLs.
CAPEC-665: Exploitation of Thunderbolt Protection Flaws
An adversary leverages a firmware weakness within the Thunderbolt protocol, on a computing device to manipulate Thunderbolt controller firmware in order to exploit vulnerabilities in the implementation of authorization and verification schemes within Thunderbolt protection mechanisms. Upon gaining physical access to a target device, the adversary conducts high-level firmware manipulation of the victim Thunderbolt controller SPI (Serial Peripheral Interface) flash, through the use of a SPI Programing device and an external Thunderbolt device, typically as the target device is booting up. If successful, this allows the adversary to modify memory, subvert authentication mechanisms, spoof identities and content, and extract data and memory from the target device. Currently 7 major vulnerabilities exist within Thunderbolt protocol with 9 attack vectors as noted in the Execution Flow.