CVE-2024-34502

mediumpriority · track · 0EPSS 0.004 · 34 %ileDEEURUUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
0.41% (34th) EPSS
CVSS 5.4 · medium
Is it mine?
10 products
Check your exposure
Who says so?
6 sources
cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-23

An issue was discovered in WikibaseLexeme in MediaWiki before 1.39.6, 1.40.x before 1.40.2, and 1.41.x before 1.41.1. Loading Special:MergeLexemes will (attempt to) make an edit that merges the from-id to the to-id, even if the request was not a POST request, and even if it does not contain an edit token.

01

cvss

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

9.8
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–critical · 5.4–9.8

v3.15.4mediumAV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:Lsecondary · FSTEC (BDU) RU
v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU
v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondaryexploitability 3.9 · impact 5.9
v3.19criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)
02

ssvc

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

Exploitation: none · Automatable: yes · Technical Impact: totalcoordinatorcisa_ssvcUS
03

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-284USCWE-352US
04

affected products (10)

Products and version ranges known to be affected.

05

advisories (2)

Vendor and ecosystem advisories describing this.

  • WID-SEC-W-2024-1022MediaWiki: Mehrere SchwachstellenDeutsch2024-05-05csaf · cert_bundDE

    Ein entfernter Angreifer kann mehrere Schwachstellen in MediaWiki ausnutzen, um einen Cross-Site-Scripting-Angriff zu starten, einen Denial-of-Service-Zustand zu verursachen oder Dateien zu manipulieren.

  • BIT-mediawiki-2024-345022025-06-18vendor · osvUS

    An issue was discovered in WikibaseLexeme in MediaWiki before 1.39.6, 1.40.x before 1.40.2, and 1.41.x before 1.41.1. Loading Special:MergeLexemes will (attempt to) make an edit that merges the from-id to the to-id, even if the request was not a POST request, and even if it does not contain an edit token.

06

also known as (4)

Other names and identifiers for this entity.

07

sources

Which sources assert this record, and when.

cnnvdenisa_euvdfstec_bdunvdosvcert_bundNVDCVE.orgMITRE
published 2024-05-05modified 2026-06-17
08

references (11)

External citations — patches, advisories, analysis.

scry

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