What’s Vulnerable › Vulnerabilities

CVE-2012-4380

• Severity: high (CVSS 7.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2017-10-19 · updated 2026-06-16
• Weakness: CWE-284

Description

MediaWiki before 1.18.5, and 1.19.x before 1.19.2 allows remote attackers to bypass GlobalBlocking extension IP address blocking and create an account via unspecified vectors.

Affected products

• Wikimedia Foundation MediaWiki: through 1.18.4; 1.19.0, 1.19.1

References

• http://www.openwall.com/lists/oss-security/2012/08/31/10
• http://www.openwall.com/lists/oss-security/2012/08/31/6
• https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=686330
• https://bugzilla.redhat.com/show_bug.cgi?id=853440
• https://lists.wikimedia.org/pipermail/mediawiki-announce/2012-August/000119.html
• https://phabricator.wikimedia.org/T41824
• http://www.openwall.com/lists/oss-security/2012/08/31/10
• http://www.openwall.com/lists/oss-security/2012/08/31/6
• https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=686330
• https://bugzilla.redhat.com/show_bug.cgi?id=853440
• https://lists.wikimedia.org/pipermail/mediawiki-announce/2012-August/000119.html
• https://phabricator.wikimedia.org/T41824

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