CVE-2026-100382 - Vulnerability Details - OpenCVE

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.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact High

Subsequent System Integrity Impact High

Subsequent System Availability Impact High

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

No data.

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://gerrit.wikimedia.org/r/c/mediawiki/extensions/ExternalData/+/1326012
https://phabricator.wikimedia.org/T434961

History

Fri, 25 Sep 2026 21:30:00 +0000

Type	Values Removed	Values Added
Description		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.
Title		Unauthenticated remote code execution through wikitext in ExternalData
Weaknesses		CWE-78
References		https://gerrit.wikimedia.org/r/c/mediawiki/extensions/ExternalData/+/1326012 https://phabricator.wikimedia.org/T434961
Metrics		cvssV4_0 `{'score': 10, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H'}`

Projects

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MITRE

Status: PUBLISHED

Assigner: wikimedia-foundation

Published: 2026-09-25T21:04:02.848Z

Updated: 2026-09-25T21:04:02.848Z

Reserved: 2026-09-25T19:28:16.149Z

Link: CVE-2026-100382

Vulnrichment

No data.

NVD

Status : Received

Published: 2026-09-25T22:17:10.150

Modified: 2026-09-25T22:17:10.150

Link: CVE-2026-100382

Redhat

No data.

OpenCVE Enrichment

Updated: 2026-09-25T23:30:17Z

Weaknesses

CWE-78

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