Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2011-1579

Severity CVSS v4.0:
Pending analysis
Type:
CWE-20 Input Validation
Publication date:
27/04/2011
Last modified:
11/04/2025

Description

The checkCss function in includes/Sanitizer.php in the wikitext parser in MediaWiki before 1.16.3 does not properly validate Cascading Style Sheets (CSS) token sequences, which allows remote attackers to conduct cross-site scripting (XSS) attacks or obtain sensitive information by using the \2f\2a and \2a\2f hex strings to surround CSS comments.

Impact

Vector 2.0
AV:N/AC:M/Au:N/C:P/I:P/A:N CVSS v2.0 Severity and Metrics:

Base Score: 5.80 MEDIUM
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Medium
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): Physical
Availability (A): None

Base Score 2.0
5.80
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:* 1.16.2 (including)
cpe:2.3:a:mediawiki:mediawiki:1.1.0:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.2.0:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.2.1:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.2.2:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.2.3:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.2.4:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.2.5:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.2.6:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.3:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.3.0:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.3.1:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.3.2:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.3.3:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.3.4:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools