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CVE-2011-1579

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Date: April 26, 2011

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.

Language: PHP

Severity Score

Related Resources (21)

http://www.securityfocus.com/bid/47354
http://www.mediawiki.org/wiki/Special:Code/MediaWiki/85856
http://www.vupen.com/english/advisories/2011/1151
https://security-tracker.debian.org/tracker/CVE-2011-1579
http://lists.fedoraproject.org/pipermail/package-announce/2011-April/058910.html
https://bugzilla.redhat.com/show_bug.cgi?id=695577
http://lists.wikimedia.org/pipermail/mediawiki-announce/2011-April/000096.html
https://exchange.xforce.ibmcloud.com/vulnerabilities/66738
http://lists.fedoraproject.org/pipermail/package-announce/2011-April/058588.html
http://lists.fedoraproject.org/pipermail/package-announce/2011-April/059235.html
http://lists.fedoraproject.org/pipermail/package-announce/2011-April/059232.html
http://www.debian.org/security/2011/dsa-2366
http://secunia.com/advisories/44142
http://openwall.com/lists/oss-security/2011/04/13/15
http://www.vupen.com/english/advisories/2011/0978
http://www.vupen.com/english/advisories/2011/1100
https://nvd.nist.gov/vuln/detail/CVE-2011-1579
https://bugzilla.wikimedia.org/show_bug.cgi?id=28450
https://bugzilla.redhat.com/show_bug.cgi?id=696360
https://people.canonical.com/~ubuntu-security/cve/CVE-2011-1579
https://www.mend.io/vulnerability-database/CVE-2011-1579

Severity Score

Weakness Type (CWE)

Input Validation

CWE-20

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): LOW
Integrity (I): LOW
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): PARTIAL
Availability (A): NONE
Additional information:

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