Home/CVE/An issue was discovered in MediaWiki before 1.35.11, 1.36.x through 1.38.x before 1.38.7, 1.39.x before 1.39.4, and 1.40
CVE

CVE-2023-36674

An issue was discovered in MediaWiki before 1.35.11, 1.36.x through 1.38.x before 1.38.7, 1.39.x before 1.39.4, and 1.40

An issue was discovered in MediaWiki before 1.35.11, 1.36.x through 1.38.x before 1.38.7, 1.39.x before 1.39.4, and 1.40.x before 1.40.1. It is possible to bypass the Bad image list (aka badFile) by using the thumb parameter (aka Manualthumb) of the File syntax.

MEDIUM · CVSS 5.3 EPSS 0.00044
Schedule remediation
  • SSVC automatable: yes - attacks can be scripted at scale
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-20Improper Input Validation
▤

Affected Products & Versions

4
mediawiki< 1.35.11
mediawiki>= 1.36.0 and < 1.38.7
mediawiki>= 1.39.0 and < 1.39.4
mediawikiall versions
▣

Scoring & Timeline

5.3
MEDIUM · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD20 Aug 2023 · 06:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
yes
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2UIVGYECQGTUC2LLPVCZBPDLCTOHL2F6/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6CHRX6DSLAMVXCV2YMJEWOLTBEYSESE5/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DOAXEGYBOEM4JWB4J3BDH73NK2LCYC3O/
https://phabricator.wikimedia.org/T335612Issue TrackingPatch
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