CVE-2021-30153

PoC —

CVSS 3.1

4.3 medium

EPSS

<1%p56

Published

Apr 15, 2023 (Apr 15, 2023)

Modified

Jun 17, 2026

Description

An issue was discovered in the VisualEditor extension in MediaWiki before 1.31.13, and 1.32.x through 1.35.x before 1.35.2. . When using VisualEditor to edit a MediaWiki user page belonging to an existing, but hidden, user, VisualEditor will disclose that the user exists. (It shouldn't because they are hidden.) This is related to ApiVisualEditor.

Vendors: mediawiki
Products: mediawiki
Weakness: CWE-668
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

NVD CVE.org GitHub PoCs EPSS (0.8%)

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