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CVE-2024-40596

MEDIUM
4.3
CVSS Score
Published: July 6, 2024 at 12:00 AM UTC
Updated: June 17, 2026 at 07:46 AM UTC
1 product affected across 1 vendorMediaWiki

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Severity
MEDIUM4.3
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

An issue was discovered in the CheckUser extension for MediaWiki through 1.42.1. The Special:Investigate feature can expose suppressed information for log events. (TimelineService does not support properly suppressing.)

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

MediaWiki· Mediawiki
95%
v ≤ 1.42.1

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

Issue Tracking
Source: [email protected]
https://phabricator.wikimedia.org/T326866

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.3MEDIUMCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-532

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