Not a U.S. government website. NDD is an independent vulnerability database by Volerion and is not affiliated with or endorsed by NIST or NVD.
VOLERION
Volerion Security Research

NOT DEFERRED DATABASE

VULNERABILITIES

CVE-2026-100240 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

No CVSS 3.x data is available for this CVE.

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://gerrit.wikimedia.org/r/q/Iaf9f6e2280798af5516197257ddc0264b9ad9fb7 wikimedia-foundation
https://phabricator.wikimedia.org/T407974 wikimedia-foundation

Weakness Enumeration

CWE-IDCWE NameSource
CWE-862Missing Authorizationwikimedia-foundation

Affected Products

No affected product data is available for this CVE.

Change History

1 change record found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-100240
NVD Published Date:
Sep 29, 2026
NVD Last Modified:
Sep 29, 2026
Source:
wikimedia-foundation
CVE-2026-100240 Details - Not Deferred