Vulnerability Monitor

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CVE-2013-4304

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.

Security Impact Summary

CVE-2013-4304 is a security vulnerability that . Impacting 2 products from brion_vibber, from mediawiki organizations running these solutions should prioritize assessment and patching.

Historical Context

Documented in 2014, this vulnerability occurred amid the cloud computing expansion era, where traditional network perimeter security models were being reevaluated. Organizations were transitioning from isolated infrastructure to interconnected systems, creating new attack surfaces that vulnerabilities like this could exploit.

Published

2014-01-26T20:55:04.173

Last Modified

2026-06-16T23:56:59.563

Status

Modified

Source

[email protected]

Severity

CVSSv2: 7.5 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:P/A:P

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: PARTIAL
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

6.4

Weaknesses

Type: Primary
CWE-287

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	brion_vibber	centralauth_extension	-	Yes
Application	mediawiki	mediawiki	1.19	Yes
Application	mediawiki	mediawiki	1.19	Yes
Application	mediawiki	mediawiki	1.19	Yes
Application	mediawiki	mediawiki	1.19.0	Yes
Application	mediawiki	mediawiki	1.19.1	Yes
Application	mediawiki	mediawiki	1.19.2	Yes
Application	mediawiki	mediawiki	1.19.3	Yes
Application	mediawiki	mediawiki	1.19.4	Yes
Application	mediawiki	mediawiki	1.19.5	Yes
Application	mediawiki	mediawiki	1.19.6	Yes
Application	mediawiki	mediawiki	1.19.7	Yes
Application	mediawiki	mediawiki	1.20	Yes
Application	mediawiki	mediawiki	1.20.1	Yes
Application	mediawiki	mediawiki	1.20.2	Yes
Application	mediawiki	mediawiki	1.20.3	Yes
Application	mediawiki	mediawiki	1.20.4	Yes
Application	mediawiki	mediawiki	1.20.5	Yes
Application	mediawiki	mediawiki	1.20.6	Yes
Application	mediawiki	mediawiki	1.21	Yes
Application	mediawiki	mediawiki	1.21.1	Yes

References

http://lists.wikimedia.org/pipermail/mediawiki-announce/2013-September/000133.html Patch ([email protected])
http://osvdb.org/96910 ([email protected])
http://seclists.org/oss-sec/2013/q3/553 ([email protected])
http://secunia.com/advisories/54723 ([email protected])
https://bugzilla.wikimedia.org/show_bug.cgi?id=52338 Exploit ([email protected])
https://exchange.xforce.ibmcloud.com/vulnerabilities/86894 ([email protected])
http://lists.wikimedia.org/pipermail/mediawiki-announce/2013-September/000133.html Patch (af854a3a-2127-422b-91ae-364da2661108)
http://osvdb.org/96910 (af854a3a-2127-422b-91ae-364da2661108)
http://seclists.org/oss-sec/2013/q3/553 (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/54723 (af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.wikimedia.org/show_bug.cgi?id=52338 Exploit (af854a3a-2127-422b-91ae-364da2661108)
https://exchange.xforce.ibmcloud.com/vulnerabilities/86894 (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For brion_vibber's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.