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 Software | Affected Version | How to fix |
|---|---|---|
| MediaWiki MediaWiki | <1.31.13 | |
| MediaWiki MediaWiki | >=1.32.0<1.35.2 |
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Reference Links
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.
- agent/type
- agent/severity
- agent/weakness
- agent/references
- agent/author
- agent/event
- agent/tags
- agent/description
- agent/remedy
- agent/first-publish-date
- agent/last-modified-date
- agent/softwarecombine
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/mediawiki
- canonical/mediawiki mediawiki
- version/mediawiki mediawiki/1.32.0