CVE-2026-100240 — TemplateSandbox does not check read permissions for the page being previewed

CVE-2026-100240

TemplateSandbox does not check read permissions for the page being previewed PUBLISHED

Description (CNA)

Missing Authorization vulnerability in Wikimedia Foundation Mediawiki - TemplateSandbox Extension allows Accessing Functionality Not Properly Constrained by ACLs. This issue affects Mediawiki - TemplateSandbox Extension: from * before 1.46.1, 1.45.5, 1.43.10.

Affected (CNA)

Vendor / product	Versions
Wikimedia Foundation / Mediawiki - TemplateSandbox Extension	affected * before 1.46.1, 1.45.5, 1.43.10

CWE

CWE-862

References

https://phabricator.wikimedia.org/T407974
https://gerrit.wikimedia.org/r/q/Iaf9f6e2280798af5516197257ddc0264b9ad9fb7

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.