What’s Vulnerable › Vulnerabilities
CVE-2025-61650: UserInfoCard is vulnerable to message key stored XSS
- Severity: low (CVSS 1.1 v4.0)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-02-03 · updated 2026-06-17
- Weakness: CWE-79
Description
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation CheckUser. This vulnerability is associated with program files src/Services/CheckUserUserInfoCardService.Php. This issue affects CheckUser: from * before 795bf333272206a0189050d975e94b70eb7dc507.
Affected products
- Wikimedia Foundation CheckUser: before 795bf333272206a0189050d975e94b70eb7dc507 — fixed in 795bf333272206a0189050d975e94b70eb7dc507
How to fix
Upgrade to a fixed version: Wikimedia Foundation CheckUser 795bf333272206a0189050d975e94b70eb7dc507. Check the vendor advisory for mitigations.
References
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