Mediawiki · Wikilambda Extension · CVE-2026-58517
**Name of the Vulnerable Software and Affected Versions**
Mediawiki - WikiLambda Extension versions prior to 1.43.9
Mediawiki - WikiLambda Extension versions prior to 1.44.6
Mediawiki - WikiLambda Extension versions prior to 1.45.4
**Description**
Improper neutralization of input terminators in the Mediawiki - WikiLambda Extension allows for authentication bypass, enabling blocked users to create and edit WikiLambda objects.
**Recommendations**
Update to version 1.43.9 or later.
Update to version 1.44.6 or later.
Update to version 1.45.4 or later.