CWE
668
Advisory Published
Updated

CVE-2021-30153

First published: Sat Apr 15 2023(Updated: )

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.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
MediaWiki MediaWiki<1.31.13
MediaWiki MediaWiki>=1.32.0<1.35.2

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Frequently Asked Questions

  • What is CVE-2021-30153?

    CVE-2021-30153 is a vulnerability in the VisualEditor extension in MediaWiki before 1.31.13 and 1.32.x through 1.35.x before 1.35.2.

  • How does CVE-2021-30153 affect MediaWiki?

    CVE-2021-30153 affects MediaWiki versions before 1.31.13, and 1.32.x through 1.35.x before 1.35.2.

  • What is the severity of CVE-2021-30153?

    CVE-2021-30153 has a severity rating of 4.3 (Medium).

  • How can CVE-2021-30153 be exploited?

    CVE-2021-30153 can be exploited by using VisualEditor to edit a MediaWiki user page belonging to a hidden user, which discloses the existence of the user.

  • How can I fix CVE-2021-30153?

    To fix CVE-2021-30153, update MediaWiki to version 1.31.13 or apply patches for versions 1.32.x through 1.35.x before 1.35.2.

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