Description
Deserialization of untrusted data vulnerability in The Wikimedia Foundation MediaWiki Wikibase extension allows Leverage Executable Code in Non-Executable Files.

This issue affects MediaWiki Wikibase extension: 1.46, 1.45, and 1.43.
Published: 2026-09-30
Score: 7.2 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Thu, 01 Oct 2026 19:45:00 +0000

Type Values Removed Values Added
First Time appeared Wikimedia
Wikimedia mediawiki-wikibase Extension
Vendors & Products Wikimedia
Wikimedia mediawiki-wikibase Extension

Wed, 30 Sep 2026 16:15:00 +0000

Type Values Removed Values Added
Description Deserialization of untrusted data vulnerability in The Wikimedia Foundation MediaWiki Wikibase extension allows Leverage Executable Code in Non-Executable Files. This issue affects MediaWiki Wikibase extension: 1.46, 1.45, and 1.43.
Title Unauthenticated arbitrary file deletion through Wikibase serialized entity parsing
Weaknesses CWE-502
References
Metrics cvssV4_0

{'score': 7.2, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:A/VC:H/VI:H/VA:L/SC:H/SI:H/SA:L/E:P/S:N/AU:Y/R:I/V:C/RE:M/U:Red'}

Subscriptions

Wikimedia Mediawiki-wikibase Extension
cve-icon MITRE

Status: PUBLISHED

Assigner: wikimedia-foundation

Published:

Updated: 2026-09-30T15:59:42.361Z

Reserved: 2026-09-30T15:41:01.270Z

Link: CVE-2026-103441

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-30T16:17:09.860

Modified: 2026-09-30T16:27:40.143

Link: CVE-2026-103441

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-01T19:30:11Z

Weaknesses
  • CWE-502

    Deserialization of Untrusted Data