MediaWiki before 1.35.1 allows XSS via BlockLogFormatter.php. Language::translateBlockExpiry itself does not escape in all code paths. For example, the return of Language::userTimeAndDate is is always unsafe for HTML in a month value. This affects MediaWiki 1.12.0 and later.
Advisories
Source ID Title
Debian DLA Debian DLA DLA-2504-1 mediawiki security update
Debian DSA Debian DSA DSA-4816-1 mediawiki security update
EUVD EUVD EUVD-2020-23150 MediaWiki before 1.35.1 allows XSS via BlockLogFormatter.php. Language::translateBlockExpiry itself does not escape in all code paths. For example, the return of Language::userTimeAndDate is is always unsafe for HTML in a month value. This affects MediaWiki 1.12.0 and later.
Fixes

Solution

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Workaround

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-04T17:02:08.034Z

Reserved: 2020-12-16T00:00:00

Link: CVE-2020-35479

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2020-12-18T08:15:15.357

Modified: 2024-11-21T05:27:22.807

Link: CVE-2020-35479

cve-icon Redhat

Severity : Moderate

Publid Date: 2020-12-18T00:00:00Z

Links: CVE-2020-35479 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses