CVE-2023-45362

mediawiki: diff-multi-sameuser ("X intermediate revisions by the same user not shown") ignores username suppression

Published Nov 3, 2023 CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed
Description
An issue was discovered in DifferenceEngine.php in MediaWiki before 1.35.12, 1.36.x through 1.39.x before 1.39.5, and 1.40.x before 1.40.1. diff-multi-sameuser (aka "X intermediate revisions by the same user not shown") ignores username suppression. This is an information leak.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-3671-1 mediawiki security update
Debian DSA Debian DSA DSA-5520-1 mediawiki security update
EUVD EUVD EUVD-2023-49655 An issue was discovered in DifferenceEngine.php in MediaWiki before 1.35.12, 1.36.x through 1.39.x before 1.39.5, and 1.40.x before 1.40.1. diff-multi-sameuser (aka "X intermediate revisions by the same user not shown") ignores username suppression. This is an information leak.
Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Nov 4, 2025, 5:12 PM
Reserved
Oct 9, 2023, 12:00 AM
Status
Modified
Published
Nov 3, 2023, 5:15 AM
Modified
Jun 17, 2026, 6:28 AM
Severity
Moderate
Public date
Oct 12, 2023, 12:00 AM