CVE-2015-2940 Cross-site request forgery in n/a
A CSRF vulnerability in the MediaWiki CheckUser extension allows attackers to hijack user sessions and retrieve sensitive information.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2015-2940?
CVE-2015-2940 is a medium-severity vulnerability in n/a, published on 13 Apr 2015. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
Cross-site request forgery (CSRF) vulnerability in the CheckUser extension for MediaWiki allows remote attackers to hijack the authentication of certain users for requests that retrieve sensitive user information via unspecified vectors.
Weakness: CWE-352
Which versions are affected by CVE-2015-2940?
It affects 1 product.
Products include Mediawiki Checkuser.
How do I fix CVE-2015-2940?
Upgrade to a fixed version.
Is CVE-2015-2940 being exploited?
There is no known exploitation of CVE-2015-2940 in the wild and no public exploit code.
Other vulnerabilities in n/a
- CVE-2019-18611 Information disclosure in n/a
- CVE-2019-16529 Information disclosure in n/a
- CVE-2026-34090 Suggested investigations: Handle suppressed usernames
- CVE-2025-61658 Special:GlobalContributions shows edits on wikis the viewer doesn't have access to
- CVE-2025-61648 Stored XSS through system messages in CheckUser
Sources
Also known as DEBIAN-CVE-2015-2940, GHSA-g77q-mpv6-8w22.