How severe is CVE-2025-61650?

CVE-2025-61650 has a CVSS 4.0 base score of 1.1, rated low severity.

Is CVE-2025-61650 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-61650?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-61650 have an EU (EUVD) identifier?

Yes. CVE-2025-61650 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-206642.

When was CVE-2025-61650 published?

CVE-2025-61650 was published on 2026-02-03 and last updated on 2026-06-17.

CVE-2025-61650

CVE-2025-61650 is a low-severity vulnerability with a CVSS 4.0 base score of 1.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Low (CVSS 4.0 base score 1.1)
EPSS exploit prediction: 0% (16th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-206642
Weakness: CWE-79
Published: 2026-02-03
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2025-61650?: 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.
How severe is CVE-2025-61650?: CVE-2025-61650 has a CVSS 4.0 base score of 1.1, rated low severity.
Is CVE-2025-61650 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-61650?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-61650 have an EU (EUVD) identifier?: Yes. CVE-2025-61650 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-206642.
When was CVE-2025-61650 published?: CVE-2025-61650 was published on 2026-02-03 and last updated on 2026-06-17.

References

https://phabricator.wikimedia.org/T403289

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