CVE-2024-47845

highpriority · track · 33EPSS 0.004 · 35 %ileDEEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.41% (35th) EPSS

CVSS 8.2 · high

Is it mine?

15 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cert_bund · nvd

EPSS · scored 2026-10-27

Improper Encoding or Escaping of Output vulnerability in The Wikimedia Foundation Mediawiki - CSS Extension allows Code Injection.This issue affects Mediawiki - CSS Extension: from 1.39.X before 1.39.9, from 1.41.X before 1.41.3, from 1.42.X before 1.42.2.

cvss

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

8.2

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–high · 2.7–8.2

v3.18.2highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:Nprimary · NVD / NIST USexploitability 2.8 · impact 4.7

v4.06.9mediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:Nsecondary · ENISA EU

v4.06.9mediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:X/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:X/AU:X/R:X/V:X/RE:X/U:Xsecondary

v4.02.7lowCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:U/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:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: poc · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-116USprimary

affected products (15)

Products and version ranges known to be affected.

Debian Linuxall versionscert_bundDEcpe:/o:debian:debian_linux:-
Fedora Linuxall versionscert_bundDEcpe:/o:fedoraproject:fedora:-
Open Source MediaWiki <1.39.9all versionscert_bundDE
Open Source MediaWiki <1.41.3all versionscert_bundDE
Open Source MediaWiki <1.42.2all versionscert_bundDE
Ubuntu Linuxall versionscert_bundDEcpe:/o:canonical:ubuntu_linux:-
Open Source MediaWiki< 1.39.9cert_bundDE
Open Source MediaWiki< 1.41.3cert_bundDE
Open Source MediaWiki< 1.42.2cert_bundDE
The Wikimedia Foundation Mediawiki - CSS Extension1.39.x → 1.39.9enisa_euvdEU
The Wikimedia Foundation Mediawiki - CSS Extension1.41.x → 1.41.3enisa_euvdEU
The Wikimedia Foundation Mediawiki - CSS Extension1.42.x → 1.42.2enisa_euvdEU
wikimedia wikimedia-extensions-css1.39.0 → 1.39.9nvdUScpe:2.3:a:wikimedia:wikimedia-extensions-css:*:*:*:*:*:*:*:*
wikimedia wikimedia-extensions-css1.41.0 → 1.41.3nvdUScpe:2.3:a:wikimedia:wikimedia-extensions-css:*:*:*:*:*:*:*:*
wikimedia wikimedia-extensions-css1.42.0 → 1.42.2nvdUScpe:2.3:a:wikimedia:wikimedia-extensions-css:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2024-3087MediaWiki: Mehrere SchwachstellenDeutsch2024-10-06csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in MediaWiki ausnutzen, um beliebigen Code auszuführen, vertrauliche Informationen offenzulegen, einen Cross-Site-Scripting-Angriff durchzuführen oder Dateien zu manipulieren.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund nvd NVD CVE.org MITRE

published 2024-10-05modified 2026-06-17

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references (11)

External citations — patches, advisories, analysis.

scry

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