CVE-2026-0817

Missing Authorization vulnerability in Wikimedia Foundation MediaWiki - CampaignEvents extension allows Privilege Abuse.This issue affects MediaWiki - CampaignEvents extension: 1.45, 1.44, 1.43, 1.39.

Score

CVSS 3.1 5.3 Medium

Status

Analyzed - c4f26cc8-17ff-4c99-b5e2-38fc1793eacc

Published

2026-01-09

Last modified

2026-01-09

Weaknesses

CWE-862

Affected products

• Campaignevents (Wikimedia)
• Mediawiki - Campaignevents Extension (Wikimedia Foundation)

References

• https://gerrit.wikimedia.org/r/q/I7ed0049691258c8bd2555e599b9b88490fbe3358
• https://phabricator.wikimedia.org/T410560