Description
MediaWiki before 1.15.3, and 1.6.x before 1.16.0beta2, does not properly handle a correctly authenticated but unintended login attempt, which makes it easier for remote authenticated users to conduct phishing attacks by arranging for a victim to login to the attacker's account and then execute a crafted user script, related to a "login CSRF" issue.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | mediawiki | 1:1.15.3-1 | — |
| Debian 13 | mediawiki | 1:1.15.3-1 | — |
| Debian 12 | mediawiki | 1:1.15.3-1 | — |
| Debian 5.0 | mediawiki | 1:1.12.0-2lenny5 | DSA-2041-1 |
Advisories 1
- DSA-2041-1 mediawiki - cross-site request forgery Debian Security (DSA / DLA) · Mar 9, 2026
References
- ADV-2010-1055 vdb-entry
- http://svn.wikimedia.org/svnroot/mediawiki/tags/REL1_16_0beta2/phase3/RELEASE-NOTES
- http://svn.wikimedia.org/svnroot/mediawiki/tags/REL1_15_3/phase3/RELEASE-NOTES
- http://download.wikimedia.org/mediawiki/1.16/mediawiki-1.16.0beta2.patch.gz
- [oss-security] 20100407 Re: CVE Request: MediaWiki 1.15.3 -- Login CSRF mailing-list
- http://download.wikimedia.org/mediawiki/1.15/mediawiki-1.15.3.patch.gz
- https://bugzilla.wikimedia.org/show_bug.cgi?id=23076
- [mediawiki-announce] 20100407 MediaWiki security update: 1.15.3 and 1.16.0beta2 mailing-list
- [oss-security] 20100406 CVE Request: MediaWiki 1.15.3 -- Login CSRF mailing-list
- https://bugzilla.redhat.com/show_bug.cgi?id=580418
- DSA-2041 vendor-advisory