CVE-2026-39935

Vulnerability Description

Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in The Wikimedia Foundation Mediawiki - CampaignEvents Extension allows Cross-Site Scripting (XSS). This issue was remediated only on the `master` branch.

Related Weaknesses (CWE)

CWE-79

References

https://gerrit.wikimedia.org/r/c/1249320
https://phabricator.wikimedia.org/T418254

FAQ

What is CVE-2026-39935?

CVE-2026-39935 is a documented vulnerability. Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in The Wikimedia Foundation Mediawiki - CampaignEvents Extension allows Cross-Site Scripting (XSS). T...

How severe is CVE-2026-39935?

CVSS scoring is not yet available for CVE-2026-39935. Check NVD for updates.

Is there a patch for CVE-2026-39935?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.