CVE-2025-53478
Description
The CheckUser extension’s Special:Investigate interface is vulnerable to reflected XSS due to improper escaping of certain internationalized system messages rendered on the “IPs and User agents” tab.
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.
CWE
- CWE-79 — CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')
Affected
- Wikimedia Foundation / Mediawiki - CheckUser extension — v=1.39.x <1.39.13 [affected]; v=1.42.x <1.42.7 [affected]; v=1.43.x <1.43.2 [affected]
CVSS
- (none)
References
- https://phabricator.wikimedia.org/T394692
- https://gerrit.wikimedia.org/r/q/I3a1e21b6800ff4d813a33ee9fe9b7ccf070b6b2e
Source
cvelistV5-main/cves/2025/53xxx/CVE-2025-53478.json