CVE-2013-4304
HIGH · CVSS 7.5EPSS 2.1%EU EUVD
The CentralAuth extension for MediaWiki 1.19.x before 1.19.8, 1.20.x before 1.20.7, and 1.21.x before 1.21.2 caches a valid CentralAuthUser object in the centralauth_User cookie even when a user has not successfully logged in, which allows remote attackers to bypass authentication without a password.
Key facts
- CVSS score
- 7.5 (v2.0)
- Severity
- HIGH
- CVSS vector
AV:N/AC:L/Au:N/C:P/I:P/A:P- Weakness (CWE)
- CWE-287
- EPSS score
- 2.1% (82th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2013-4198)
- Published
- January 26, 2014
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2013-4198 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.
View on the EU Vulnerability DatabaseAffected products
- brion vibber / centralauth extension
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
- mediawiki / mediawiki
References
- http://lists.wikimedia.org/pipermail/mediawiki-announce/2013-September/000133.html(Patch)
- http://osvdb.org/96910
- http://seclists.org/oss-sec/2013/q3/553
- http://secunia.com/advisories/54723
- https://bugzilla.wikimedia.org/show_bug.cgi?id=52338(Exploit)
- https://exchange.xforce.ibmcloud.com/vulnerabilities/86894
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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