Description
includes/specials/SpecialChangePassword.php in MediaWiki before 1.19.14, 1.20.x and 1.21.x before 1.21.8, and 1.22.x before 1.22.5 does not properly handle a correctly authenticated but unintended login attempt, which makes it easier for remote authenticated users to obtain sensitive information by arranging for a victim to login to the attacker's account, as demonstrated by tracking the victim's activity, 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 | 1:1.19.14+dfsg-1 | — |
| Debian 13 | mediawiki | 1:1.19.14+dfsg-1 | — |
| Debian 12 | mediawiki | 1:1.19.14+dfsg-1 | — |
| Debian 7 | mediawiki | 1:1.19.14+dfsg-0+deb7u1 | DSA-2891-1 |
| Debian 7 | mediawiki-extensions | 3.5~deb7u1 | DSA-2891-1 |
Advisories 1
- DSA-2891-1 mediawiki - security update Debian Security (DSA / DLA) · Mar 9, 2026
References
- https://bugzilla.wikimedia.org/show_bug.cgi?id=62497
- [oss-security] 20140327 CVE request: MediaWiki 1.22.5 login csrf mailing-list
- [mediawiki-announce] 20140328 MediaWiki Security and Maintenance Releases: 1.22.5, 1.21.8 and 1.19.14 mailing-list
- [oss-security] 20140401 Re: CVE request: MediaWiki 1.22.5 login csrf mailing-list
- https://gerrit.wikimedia.org/r/#/c/121517/1/includes/specials/SpecialChangePassword.php