CVE-2026-100382NVD

Vulnerability Summary

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability in Wikimedia Foundation Mediawiki - ExternalData Extension allows OS Command Injection.

This issue affects Mediawiki - ExternalData Extension: from * before 3.7.

Severity Level

CRITICAL(10.0)

Published Date

Sep 25, 2026

Last Modified

Sep 25, 2026

Exploitation Status

No confirmed exploitation yet

EPSS Score (30-Day)

Data Pending

Root Weakness (CWE)

CWE-78: OS Command Injection ↗

The software constructs all or part of an OS command using externally-influenced input, but does not properly neutralize special elements.

CVSS v4.0 Base Metrics — Score 10.0 (CRITICAL)

Attack VectorNetwork

Attack ComplexityLow

Attack RequirementsNone

Privileges RequiredNone

User InteractionNone

Confidentiality (Vulnerable System)High

Integrity (Vulnerable System)High

Availability (Vulnerable System)High

Confidentiality (Subsequent System)High

Integrity (Subsequent System)High

Availability (Subsequent System)High

Affected & Patched Versions

Affected Versions

Wikimedia Foundation Mediawiki - ExternalData Extension >= * and < 3.7

Patched Versions

Wikimedia Foundation Mediawiki - ExternalData Extension 3.7

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