CVE-2026-100241

Mediawiki - EventBus Extension: Private change tags exposed to anonymous users via revision-tags-change events

Wikimedia Foundation Mediawiki - EventBus ExtensionApplications & CMS

CVSS

7.5High

ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV

Exploit odds (EPSS)0.31%Chance of exploitation activity in the next 30 days, higher than 23% of CVEs. Scored 23 Oct 2026FIRST EPSS

Fixed inNone listedNo source names a fixed version yet

Published29 Sep 2026Updated 30 Sep 2026CVE List

What fixes it

No source in this snapshot names a fixed version.

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation Mediawiki - EventBus Extension allows Excavation.

This issue affects Mediawiki - EventBus Extension: 1.47.0-alpha.

Text from CVE List