Description (CNA)
The CheckUser extension’s Special:Investigate page has a vulnerability in the Account information tab, where specific internationalized messages are rendered without proper escaping. Attackers can exploit this by appending ?uselang=x-xss to the URL, causing reflected XSS when the UI renders affected message keys. This issue affects Mediawiki - CheckUser extension: from 1.39.X before 1.39.13, from 1.42.X before 1.42.7, from 1.43.X before 1.43.2.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Wikimedia Foundation / Mediawiki - CheckUser extension | affected 1.39.x before 1.39.13; affected 1.42.x before 1.42.7; affected 1.43.x before 1.43.2 |
CWE
CWE-79
References
- https://phabricator.wikimedia.org/T394700
- https://gerrit.wikimedia.org/r/q/I777fc55fef15c3b00df0db268af2b64cb2d6e381
ADP enrichment
No English description supplied.
No references supplied.