Home

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 affects Mediawiki - CampaignEvents Extension: 1.43.7, 1.44.4, 1.45.2.

PUBLISHED Reserved 2026-04-07 | Published 2026-04-07 | Updated 2026-04-07 | Assigner wikimedia-foundation




MEDIUM: 6.9CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L

Problem types

CWE-79 Improper neutralization of input during web page generation ('cross-site scripting')

Product status

Default status
unaffected

1.43.7
affected

1.44.4
affected

1.45.2
affected

Credits

Daimona finder

References

phabricator.wikimedia.org/T418254

gerrit.wikimedia.org/r/c/1249320

cve.org (CVE-2026-39935)

nvd.nist.gov (CVE-2026-39935)

Download JSON