Vulnerability Details : CVE-2021-30153
Potential exploit
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.
Products affected by CVE-2021-30153
- cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*
- cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-30153
0.14%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 50 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-30153
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
4.3
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
2.8
|
1.4
|
134c704f-9b21-4f2e-91b3-4a467353bcc0 | 2025-02-06 |
4.3
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
2.8
|
1.4
|
NIST |
CWE ids for CVE-2021-30153
-
The product exposes a resource to the wrong control sphere, providing unintended actors with inappropriate access to the resource.Assigned by:
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)
- nvd@nist.gov (Primary)
References for CVE-2021-30153
-
https://lists.wikimedia.org/pipermail/wikitech-l/2021-April/094418.html
[Wikitech-l] Security and maintenance release: 1.31.13 / 1.35.2 - Wikitech-l - lists.wikimedia.orgMailing List;Patch;Vendor Advisory
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https://phabricator.wikimedia.org/T270453
⚓ T270453 CVE-2021-30153: ApiVisualEditor leaks info about hidden usersExploit;Vendor Advisory
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https://lists.wikimedia.org/hyperkitty/list/wikitech-l%40lists.wikimedia.org/message/XYBF5RSTJRMVCP7QBYK7643W75A3KCIY/
[Wikitech-l] Security and maintenance release: 1.31.13 / 1.35.2 - Wikitech-l - lists.wikimedia.org
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https://lists.wikimedia.org/hyperkitty/list/wikitech-l@lists.wikimedia.org/message/XYBF5RSTJRMVCP7QBYK7643W75A3KCIY/
[Wikitech-l] Security and maintenance release: 1.31.13 / 1.35.2 - Wikitech-l - lists.wikimedia.orgMailing List;Patch;Vendor Advisory
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