Common Weakness Enumeration

CWE-290

Allowed

Authentication Bypass by Spoofing

Abstraction: Base · Status: Incomplete

This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks.

1147 vulnerabilities reference this CWE, most recent first.

CVE-2026-103397 (GCVE-0-2026-103397)

Vulnerability from cvelistv5 – Published: 2026-09-30 14:48 – Updated: 2026-10-01 14:50

Title

OpenSave before 2.4.0-beta.1 Authentication Bypass via Spoofed Relay Sender

Summary

OpenSave before 2.4.0-beta.1 fails to validate sender identity in WAN relay requests, allowing unpaired room members to impersonate paired devices by spoofing the RelayMessage From field. Attackers who know the room code can join, read paired peer identifiers from announcements, and send forged requests to access protected sync routes including save data, snapshots, and file operations.

Severity

6.3 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

5.6 (Medium)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

CWE

CWE-290 - Authentication Bypass by Spoofing

Assigner

VulnCheck mitre root Scorecard

References

5 references

URL	Tags
https://gist.github.com/mansurmavlankulov/2ca66f9…	third-party-advisory
https://github.com/Liquid-co/OpenSave/commit/2f26…	patch
https://github.com/Liquid-co/OpenSave/blob/v2.3.1…	technical-description
https://github.com/Liquid-co/OpenSave	product
https://www.vulncheck.com/advisories/opensave-bef…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
Liquid-co	OpenSave	Affected: 0 , < 2.4.0-beta.1 (semver)

Date Public

2026-09-09 00:00

Credits

Mansurzhan Mavlankulov

Show details on NVD website

JSON

To clipboard

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CVE-2026-103347 (GCVE-0-2026-103347)

Vulnerability from cvelistv5 – Published: 2026-10-01 14:34 – Updated: 2026-10-01 15:58

Title

WordPress hCaptcha for WP plugin <= 5.3.0 - Bypass Vulnerability vulnerability

Summary

Unauthenticated Bypass Vulnerability in hCaptcha for WP <= 5.3.0 versions.

Severity

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-01 15:58 UTC

CWE

CWE-290 - Authentication Bypass by Spoofing

Assigner

Patchstack mitre root Scorecard

References

1 reference

URL	Tags
https://patchstack.com/database/wordpress/plugin/…	vdb-entry

Impacted products

1 product

Vendor	Product	Version
hcaptcha	hCaptcha for WP	Affected: n/a , ≤ 5.3.0 (custom)

Credits

bamper1 | Patchstack Bug Bounty Program

Show details on NVD website

JSON

To clipboard

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CVE-2026-101280 (GCVE-0-2026-101280)

Vulnerability from cvelistv5 – Published: 2026-09-29 00:30 – Updated: 2026-09-29 17:28

Title

Trusted Domain Project OpenDMARC Multi-Record Set opendmarc_policy_query_dmarc authentication spoofing

Summary

A vulnerability was detected in Trusted Domain Project OpenDMARC up to 1.4.2. Affected is the function opendmarc_policy_query_dmarc of the component Multi-Record Set Handler. The manipulation results in authentication bypass by spoofing. The attack can be executed remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Severity

6.9 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

7.3 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

7.3 (High)


                        
                          CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-29 17:28 UTC

CWE

CWE-290 - Authentication Bypass by Spoofing
CWE-287 - Improper Authentication

Assigner

VulDB mitre root Scorecard

References

5 references

URL	Tags
https://vuldb.com/vuln/411037	vdb-entrytechnical-description
https://vuldb.com/vuln/411037/cti	signaturepermissions-required
https://vuldb.com/cve/CVE-2026-101280	third-party-advisory
https://vuldb.com/submit/918282	third-party-advisory
https://xuyongzhe-vt.github.io/share/opendmarc-mu…	exploit

Impacted products

1 product

Vendor	Product	Version
Trusted Domain Project	OpenDMARC	Affected: 1.4.0 Affected: 1.4.1 Affected: 1.4.2 cpe:2.3:a:trusted_domain_project:opendmarc::::::::

Credits

yongzhe_xu (VulDB User) VulDB CNA Team

Show details on NVD website

JSON

To clipboard

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CVE-2026-100390 (GCVE-0-2026-100390)

Vulnerability from cvelistv5 – Published: 2026-09-25 20:13 – Updated: 2026-09-25 20:42

Title

Zoraxy 3.2.3 through 3.3.4 Client IP Spoofing via X-Forwarded-For IPv6

Summary

Zoraxy versions 3.2.3 through 3.3.4 fail to properly parse IPv6 addresses in the RemoteAddr field when setting forwarded headers. Unauthenticated attackers connecting over IPv6 can supply arbitrary X-Forwarded-For values to spoof their source IP and bypass authorization provider IP-based access controls.

Severity

9.1 (Critical)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

7.4 (High)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-25 20:42 UTC

CWE

CWE-290 - Authentication Bypass by Spoofing

Assigner

VulnCheck mitre root Scorecard

References

5 references

URL	Tags
https://github.com/tobychui/zoraxy/pull/1264	issue-trackingpatch
https://github.com/tobychui/zoraxy/commit/56bb3e5…	patch
https://github.com/tobychui/zoraxy/blob/v3.3.4/sr…	technical-description
https://github.com/tobychui/zoraxy	product
https://www.vulncheck.com/advisories/zoraxy-3.2.3…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
tobychui	zoraxy	Affected: 3.2.3 , ≤ 3.3.4 (semver) cpe:2.3:a:zoraxy:zoraxy::::::::

Date Public

2026-08-18 00:00

Credits

Thilo Ramke

Show details on NVD website

JSON

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CVE-2026-97274 (GCVE-0-2026-97274)

Vulnerability from cvelistv5 – Published: 2026-09-30 12:28 – Updated: 2026-09-30 13:37

Title

WordPress OAuth Single Sign On – SSO (OAuth Client) plugin <= 7.1.2 - Bypass vulnerability vulnerability

Summary

Unauthenticated Bypass Vulnerability in OAuth Single Sign On – SSO (OAuth Client) <= 7.1.2 versions.

Severity

9.8 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-30 12:58 UTC

CWE

CWE-290 - Authentication Bypass by Spoofing

Assigner

Patchstack mitre root Scorecard

References

1 reference

URL	Tags
https://patchstack.com/database/wordpress/plugin/…	vdb-entry

Impacted products

1 product

Vendor	Product	Version
miniOrange	OAuth Single Sign On – SSO (OAuth Client)	Affected: n/a , ≤ 7.1.2 (custom)

Credits

rpgsec | Patchstack Bug Bounty Program

Show details on NVD website

JSON

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CVE-2026-97249 (GCVE-0-2026-97249)

Vulnerability from cvelistv5 – Published: 2026-09-30 12:28 – Updated: 2026-09-30 13:27

Title

WordPress Paid Member Subscriptions plugin <= 3.0.9 - Bypass Vulnerability vulnerability

Summary

Unauthenticated Bypass Vulnerability in Paid Member Subscriptions <= 3.0.9 versions.

Severity

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-30 13:01 UTC

CWE

CWE-290 - Authentication Bypass by Spoofing

Assigner

Patchstack mitre root Scorecard

References

1 reference

URL	Tags
https://patchstack.com/database/wordpress/plugin/…	vdb-entry

Impacted products

1 product

Vendor	Product	Version
Cozmoslabs	Paid Member Subscriptions	Affected: n/a , ≤ 3.0.9 (custom)

Credits

MYUNGYONG LEE | Patchstack Bug Bounty Program

Show details on NVD website

JSON

To clipboard

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CVE-2026-96825 (GCVE-0-2026-96825)

Vulnerability from cvelistv5 – Published: 2026-09-30 12:27 – Updated: 2026-09-30 13:17

Title

WordPress All In One WP Security & Firewall plugin <= 5.4.8 - Bypass Vulnerability vulnerability

Summary

Subscriber Bypass Vulnerability in All In One WP Security & Firewall <= 5.4.8 versions.

Severity

4.2 (Medium)


                        
                          CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-30 13:11 UTC

CWE

CWE-290 - Authentication Bypass by Spoofing

Assigner

Patchstack mitre root Scorecard

References

1 reference

URL	Tags
https://patchstack.com/database/wordpress/plugin/…	vdb-entry

Impacted products

1 product

Vendor	Product	Version
David Anderson / Team Updraft	All In One WP Security & Firewall	Affected: n/a , ≤ 5.4.8 (custom)

Credits

Ananda Dhakal (Patchstack) | Patchstack Bug Bounty Program

Show details on NVD website

JSON

To clipboard

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CVE-2026-95524 (GCVE-0-2026-95524)

Vulnerability from cvelistv5 – Published: 2026-09-23 18:14 – Updated: 2026-09-23 19:42

Title

WordPress WP User Frontend plugin <= 4.3.11 - Bypass Vulnerability vulnerability

Summary

Unauthenticated Bypass Vulnerability in WP User Frontend <= 4.3.11 versions.

Severity

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-23 19:06 UTC

CWE

CWE-290 - Authentication Bypass by Spoofing

Assigner

Patchstack mitre root Scorecard

References

1 reference

URL	Tags
https://patchstack.com/database/wordpress/plugin/…	vdb-entry

Impacted products

1 product

Vendor	Product	Version
weDevs	WP User Frontend	Affected: n/a , ≤ 4.3.11 (custom)

Credits

Ananda Dhakal (Patchstack) | Patchstack Bug Bounty Program

Show details on NVD website

JSON

To clipboard

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CVE-2026-95523 (GCVE-0-2026-95523)

Vulnerability from cvelistv5 – Published: 2026-09-23 18:14 – Updated: 2026-09-23 18:46

Title

WordPress WP User Frontend plugin <= 4.3.11 - Bypass Vulnerability vulnerability

Summary

Subscriber Bypass Vulnerability in WP User Frontend <= 4.3.11 versions.

Severity

6.5 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-23 18:37 UTC

CWE

CWE-290 - Authentication Bypass by Spoofing

Assigner

Patchstack mitre root Scorecard

References

1 reference

URL	Tags
https://patchstack.com/database/wordpress/plugin/…	vdb-entry

Impacted products

1 product

Vendor	Product	Version
weDevs	WP User Frontend	Affected: n/a , ≤ 4.3.11 (custom)

Credits

Ananda Dhakal (Patchstack) | Patchstack Bug Bounty Program

Show details on NVD website

JSON

To clipboard

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CVE-2026-94457 (GCVE-0-2026-94457)

Vulnerability from cvelistv5 – Published: 2026-09-23 18:14 – Updated: 2026-09-23 19:43

Title

WordPress Captcha Code plugin <= 3.32 - Bypass Vulnerability vulnerability

Summary

Unauthenticated Bypass Vulnerability in Captcha Code <= 3.32 versions.

Severity

4.8 (Medium)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-23 19:04 UTC

CWE

CWE-290 - Authentication Bypass by Spoofing

Assigner

Patchstack mitre root Scorecard

References

1 reference

URL	Tags
https://patchstack.com/database/wordpress/plugin/…	vdb-entry

Impacted products

1 product

Vendor	Product	Version
WebFactory	Captcha Code	Affected: n/a , ≤ 3.32 (custom)

Credits

KLg | Patchstack Bug Bounty Program

Show details on NVD website

JSON

To clipboard

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No mitigation information available for this CWE.

CAPEC-21: Exploitation of Trusted Identifiers

An adversary guesses, obtains, or "rides" a trusted identifier (e.g. session ID, resource ID, cookie, etc.) to perform authorized actions under the guise of an authenticated user or service.

CAPEC-22: Exploiting Trust in Client

An attack of this type exploits vulnerabilities in client/server communication channel authentication and data integrity. It leverages the implicit trust a server places in the client, or more importantly, that which the server believes is the client. An attacker executes this type of attack by communicating directly with the server where the server believes it is communicating only with a valid client. There are numerous variations of this type of attack.

CAPEC-459: Creating a Rogue Certification Authority Certificate

An adversary exploits a weakness resulting from using a hashing algorithm with weak collision resistance to generate certificate signing requests (CSR) that contain collision blocks in their "to be signed" parts. The adversary submits one CSR to be signed by a trusted certificate authority then uses the signed blob to make a second certificate appear signed by said certificate authority. Due to the hash collision, both certificates, though different, hash to the same value and so the signed blob works just as well in the second certificate. The net effect is that the adversary's second X.509 certificate, which the Certification Authority has never seen, is now signed and validated by that Certification Authority.

CAPEC-461: Web Services API Signature Forgery Leveraging Hash Function Extension Weakness

An adversary utilizes a hash function extension/padding weakness, to modify the parameters passed to the web service requesting authentication by generating their own call in order to generate a legitimate signature hash (as described in the notes), without knowledge of the secret token sometimes provided by the web service.

CAPEC-473: Signature Spoof

An attacker generates a message or datablock that causes the recipient to believe that the message or datablock was generated and cryptographically signed by an authoritative or reputable source, misleading a victim or victim operating system into performing malicious actions.

CAPEC-476: Signature Spoofing by Misrepresentation

An attacker exploits a weakness in the parsing or display code of the recipient software to generate a data blob containing a supposedly valid signature, but the signer's identity is falsely represented, which can lead to the attacker manipulating the recipient software or its victim user to perform compromising actions.

CAPEC-59: Session Credential Falsification through Prediction

This attack targets predictable session ID in order to gain privileges. The attacker can predict the session ID used during a transaction to perform spoofing and session hijacking.

CAPEC-60: Reusing Session IDs (aka Session Replay)

This attack targets the reuse of valid session ID to spoof the target system in order to gain privileges. The attacker tries to reuse a stolen session ID used previously during a transaction to perform spoofing and session hijacking. Another name for this type of attack is Session Replay.

CAPEC-667: Bluetooth Impersonation AttackS (BIAS)

An adversary disguises the MAC address of their Bluetooth enabled device to one for which there exists an active and trusted connection and authenticates successfully. The adversary can then perform malicious actions on the target Bluetooth device depending on the target’s capabilities.

CAPEC-94: Adversary in the Middle (AiTM)

An adversary targets the communication between two components (typically client and server), in order to alter or obtain data from transactions. A general approach entails the adversary placing themself within the communication channel between the two components.

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