CVE-2026-103441

highpriority · track · 10EPSS 0.003 · 21 %ileexploit · PoCDE

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · PoC

Likely / severe?

0.28% (21st) EPSS

CVSS 7.2 · high

Is it mine?

49 products

Check your exposure

Who says so?

1 sources

cert_bund

EPSS · scored 2026-10-27

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.

cvss

Technical severity, 0–10. One row per scoring source.

7.2

010

base score 0–10 · higher = more severe · hover a vector to decode

v4.07.2highCVSS: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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:Y/R:I/V:C/RE:M/U:Redsecondary

v4.07.2highCVSS: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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:Y/R:I/V:C/RE:M/U:Redsecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-502US

exploits (1)

Public proof-of-concept and weaponised exploit code.

BomboBombone/CVE-2026-103441Sanitized report summary and local PoC for CVE-2026-103441PoC · poc_in_github

affected products (49)

Products and version ranges known to be affected.

Open Source MediaWiki CentralAuth Extension <1.43all versionscert_bundDE
Open Source MediaWiki CentralAuth Extension <1.45all versionscert_bundDE
Open Source MediaWiki CentralAuth Extension <1.46all versionscert_bundDE
Open Source MediaWiki Collection (Book) Extension <1.43all versionscert_bundDE
Open Source MediaWiki Collection (Book) Extension <1.45all versionscert_bundDE
Open Source MediaWiki Collection (Book) Extension <1.46all versionscert_bundDE
Open Source MediaWiki CommonsMetadata Extension <1.43all versionscert_bundDE
Open Source MediaWiki CommonsMetadata Extension <1.45all versionscert_bundDE
Open Source MediaWiki CommonsMetadata Extension <1.46all versionscert_bundDE
Open Source MediaWiki MediaSearch Extension <1.43all versionscert_bundDE
Open Source MediaWiki MediaSearch Extension <1.45all versionscert_bundDE
Open Source MediaWiki MediaSearch Extension <1.46all versionscert_bundDE
Open Source MediaWiki PageTriage Extension <1.43all versionscert_bundDE
Open Source MediaWiki PageTriage Extension <1.45all versionscert_bundDE
Open Source MediaWiki PageTriage Extension <1.46all versionscert_bundDE
Open Source MediaWiki ReadingLists Extension <1.45all versionscert_bundDE
Open Source MediaWiki ReadingLists Extension <1.46all versionscert_bundDE
Open Source MediaWiki WikiForum Extensionall versionscert_bundDEcpe:/a:mediawiki:mediawiki:wikiforum_extension
Open Source MediaWiki WikiLambda Extension <1.46all versionscert_bundDE
Open Source MediaWiki Wikibase Extension <1.43all versionscert_bundDE

showing 20 of 49

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-3693MediaWiki Extensions: Mehrere SchwachstellenDeutsch2026-09-30csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in MediaWiki Extensions ausnutzen, um beliebigen Programmcode auszuführen, Sicherheitsmaßnahmen zu umgehen, Cross-Site-Scripting-Angriffe durchzuführen sowie Daten zu manipulieren oder offenzulegen.

sources

Which sources assert this record, and when.

cert_bund NVD CVE.org MITRE

published 2026-09-30modified 2026-09-30

references (2) nvd

External citations — patches, advisories, analysis.

scry

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