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.

Remediation

References

CVE-2021-30153

Related Vulnerabilities

WordPress Plugin SportsPress-Sports Club & League Manager Cross-Site Scripting (2.7.1)

WordPress Plugin SiteGround Security Security Bypass (1.2.5)

Moodle Improper Control of Generation of Code ('Code Injection') Vulnerability (CVE-2018-14630)

WordPress Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Vulnerability (CVE-2007-1732)

Jboss EAP Improper Initialization Vulnerability (CVE-2023-4503)

Severity

Medium

Classification

CVE-2021-30153 CWE-668 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Tags

Missing Update Known Vulnerabilities