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VULNERABILITIES

CVE-2021-42041 Details

Description

An issue was discovered in CentralAuth in MediaWiki through 1.36.2. The rightsnone MediaWiki message was not being properly sanitized and allowed for the injection and execution of HTML and JavaScript via the setchange log.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:6.1 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://gerrit.wikimedia.org/r/q/I7aeaa6e4de5ccaa5eeb6bf4fb00c96b01d5fea35 CVEPatchVendor Advisory
https://phabricator.wikimedia.org/T291696 CVEExploitPatchVendor Advisory
https://gerrit.wikimedia.org/r/q/I7aeaa6e4de5ccaa5eeb6bf4fb00c96b01d5fea35 [email protected]PatchVendor Advisory
https://phabricator.wikimedia.org/T291696 [email protected]ExploitPatchVendor Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')[email protected]

Affected Products

ProductVersions
mediawiki mediawiki
<= 1.36.2

CPE

  • cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

4 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2021-42041
NVD Published Date:
Oct 6, 2021
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2021-42041 Details - Not Deferred