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Low 1.1Published Feb 2, 2026

CVE-2025-61650UserInfoCard is vulnerable to message key stored XSS

Updated under an hour ago ()

Does this affect you?

It affects Wikimedia Foundation CheckUser. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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.

CVSS
1.1 LOW (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U
Weakness (CWE)
CWE-79
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
wikimedia-foundation
NVD analysis
Deferred
Record last updated
Feb 3, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
Wikimedia Foundation CheckUser
wikimedia_foundation:checkuser (from the name)
before 795bf333272206a0189050d975e94b70eb7dc507
CNA record

References

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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