What’s Vulnerable › Vulnerabilities

CVE-2019-15150

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-08-19 · updated 2026-06-17
• Weakness: CWE-352

Description

In the OAuth2 Client extension before 0.4 for MediaWiki, a CSRF vulnerability exists due to the OAuth2 state parameter not being checked in the callback function.

Affected products

• Schine.Games Mw-Oauth2Client: before 0.4 — fixed in 0.4

How to fix

Upgrade to a fixed version: Schine.Games Mw-Oauth2Client 0.4. Check the vendor advisory for mitigations.

References

• http://packetstormsecurity.com/files/154140/MediaWiki-OAuth2-Client-0.3-Cross-Site-Request-Forgery.html
• http://seclists.org/fulldisclosure/2019/Aug/25
• http://www.openwall.com/lists/oss-security/2019/08/19/1
• https://github.com/Schine/MW-OAuth2Client/commit/6a4fe4500ddd72ad4e826d9d63b2d69512bd10d1
• https://github.com/Schine/MW-OAuth2Client/releases/tag/v0.4
• https://seclists.org/bugtraq/2019/Aug/32
• http://packetstormsecurity.com/files/154140/MediaWiki-OAuth2-Client-0.3-Cross-Site-Request-Forgery.html
• http://seclists.org/fulldisclosure/2019/Aug/25
• http://www.openwall.com/lists/oss-security/2019/08/19/1
• https://github.com/Schine/MW-OAuth2Client/commit/6a4fe4500ddd72ad4e826d9d63b2d69512bd10d1
• https://github.com/Schine/MW-OAuth2Client/releases/tag/v0.4
• https://seclists.org/bugtraq/2019/Aug/32

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