How severe is CVE-2025-61644?

CVE-2025-61644 has a CVSS 4.0 base score of 0.0, rated none severity.

Is CVE-2025-61644 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-2025-61644?

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

Does CVE-2025-61644 have an EU (EUVD) identifier?

Yes. CVE-2025-61644 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-206646.

When was CVE-2025-61644 published?

CVE-2025-61644 was published on 2026-02-03 and last updated on 2026-06-17.

CVE-2025-61644

CVE-2025-61644 is a none-severity vulnerability with a CVSS 4.0 base score of 0.0. 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: None (CVSS 4.0 base score 0.0)
EPSS exploit prediction: 0% (16th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-206646
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 MediaWiki. This vulnerability is associated with program files resources/src/mediawiki.Rcfilters/ui/WatchlistTopSectionWidget.Js. This issue affects MediaWiki: from * before > fb856ce9cf121e046305116852cca4899ecb48ca.

Frequently asked questions

What is CVE-2025-61644?: Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files resources/src/mediawiki.Rcfilters/ui/WatchlistTopSectionWidget.Js. This issue affects MediaWiki: from * before > fb856ce9cf121e046305116852cca4899ecb48ca.
How severe is CVE-2025-61644?: CVE-2025-61644 has a CVSS 4.0 base score of 0.0, rated none severity.
Is CVE-2025-61644 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-2025-61644?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-61644 have an EU (EUVD) identifier?: Yes. CVE-2025-61644 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-206646.
When was CVE-2025-61644 published?: CVE-2025-61644 was published on 2026-02-03 and last updated on 2026-06-17.

References

https://phabricator.wikimedia.org/T403411

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