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CVE-2011-1579

UnknownEPSS 1.92%

Last modified

CVE-2011-1579 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 1.92% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability
1.92%

77.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersionsUpdate
MediawikiMediawiki<= 1.16.2—
MediawikiMediawiki1.1.0—
MediawikiMediawiki1.2.0—
MediawikiMediawiki1.2.1—
MediawikiMediawiki1.2.2—
MediawikiMediawiki1.2.3—
MediawikiMediawiki1.2.4—
MediawikiMediawiki1.2.5—
MediawikiMediawiki1.2.6—
MediawikiMediawiki1.3—
MediawikiMediawiki1.3.0—
MediawikiMediawiki1.3.1—
MediawikiMediawiki1.3.2—
MediawikiMediawiki1.3.3—
MediawikiMediawiki1.3.4—
MediawikiMediawiki1.3.5—
MediawikiMediawiki1.3.6—
MediawikiMediawiki1.3.7—
MediawikiMediawiki1.3.8—
MediawikiMediawiki1.3.9—
MediawikiMediawiki1.3.10—
MediawikiMediawiki1.3.11—
MediawikiMediawiki1.3.12—
MediawikiMediawiki1.3.13—
MediawikiMediawiki1.3.14—
MediawikiMediawiki1.3.15—
MediawikiMediawiki1.4Beta1
MediawikiMediawiki1.4.0—
MediawikiMediawiki1.4.1—
MediawikiMediawiki1.4.2—
MediawikiMediawiki1.4.3—
MediawikiMediawiki1.4.4—
MediawikiMediawiki1.4.5—
MediawikiMediawiki1.4.6—
MediawikiMediawiki1.4.7—
MediawikiMediawiki1.4.8—
MediawikiMediawiki1.4.9—
MediawikiMediawiki1.4.10—
MediawikiMediawiki1.4.11—
MediawikiMediawiki1.4.12—
MediawikiMediawiki1.4.13—
MediawikiMediawiki1.4.14—
MediawikiMediawiki1.5Alpha1
MediawikiMediawiki1.5.0—
MediawikiMediawiki1.5.1—
MediawikiMediawiki1.5.2—
MediawikiMediawiki1.5.3—
MediawikiMediawiki1.5.4—
MediawikiMediawiki1.5.5—
MediawikiMediawiki1.5.6—

Showing 50 of 111 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2011-1579?
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.
How severe is CVE-2011-1579?
Severity scoring for CVE-2011-1579 is pending analysis. The EPSS model estimates a 1.92% probability of exploitation in the next 30 days.
How do I fix CVE-2011-1579?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2011-1579?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST