CVE-2026-22710 — MEDIUM (5.4)

Vulnerability Description

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in The Wikimedia Foundation Mediawiki - Wikibase Extension allows Cross-Site Scripting (XSS).This issue affects Mediawiki - Wikibase Extension: 1.45, 1.44, 1.43, 1.39.

CVSS Score

5.4

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE

Affected Products

Vendor	Product	Versions
Wikimedia	Wikibase	1.39

Related Weaknesses (CWE)

CWE-79

References

https://gerrit.wikimedia.org/r/q/I39d0074b2ad022b6efe6ab3dd8c8ec0f86c6c466Patch
https://phabricator.wikimedia.org/T409737ExploitIssue Tracking
https://phabricator.wikimedia.org/T409737ExploitIssue Tracking

FAQ

What is CVE-2026-22710?

CVE-2026-22710 is a vulnerability with a CVSS score of 5.4 (MEDIUM). Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in The Wikimedia Foundation Mediawiki - Wikibase Extension allows Cross-Site Scripting (XSS).T...

How severe is CVE-2026-22710?

CVE-2026-22710 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-22710?

Check the references section above for vendor advisories and patch information. Affected products include: Wikimedia Wikibase.