CVE-2012-4382

MEDIUM 4.9CVE-2012-4382 · Published 19/10/2017 · updated 16/06/2026

In short

CVE-2012-4382 is a MEDIUM (CVSS 4.9) vulnerability affecting mediawiki (mediawiki).
Chance of exploitation in the next 30 days (EPSS): 1.2%, higher than 68.3% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
mediawiki mediawiki	`= 1.19.0= 1.19.1≤ 1.18.4`	No fix yet

Description

MediaWiki before 1.18.5, and 1.19.x before 1.19.2 does not properly protect user block metadata, which allows remote administrators to read a user block reason via a reblock attempt.

References

openwall.com/lists/oss-security/2012/08/31/10 · Mailing List
openwall.com/lists/oss-security/2012/08/31/6 · Mailing List
bugs.debian.org/cgi-bin/bugreport.cgi · Issue Tracking
lists.wikimedia.org/pipermail/mediawiki-announce/2012-August/000119.html · Patch
phabricator.wikimedia.org/T41823 · Issue Tracking

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Package

Affected versions

Patched versions

mediawiki

= 1.19.0= 1.19.1≤ 1.18.4

No fix yet

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