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HIGH

javascript: URLs in chrome documents (MFSA 2011-08)

Published Apr 28, 2010

Description

The nsIScriptableUnescapeHTML.parseFragment method in the ParanoidFragmentSink protection mechanism in Mozilla Firefox before 3.5.17 and 3.6.x before 3.6.14, Thunderbird before 3.1.8, and SeaMonkey before 2.0.12 does not properly sanitize HTML in a chrome document, which makes it easier for remote attackers to execute arbitrary JavaScript with chrome privileges via a javascript: URI in input to an extension, as demonstrated by a javascript:alert sequence in (1) the HREF attribute of an A element or (2) the ACTION attribute of a FORM element.

Affected products

Remediation

No remediation recorded yet.

Metrics

References (13)

Change history (0)

No recorded changes yet.

Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Apr 28, 2010
Updated Aug 7, 2024
Reserved Apr 28, 2010
NVD
Status Modified
Modified Jun 16, 2026
Red Hat
Severity Critical
Public date Mar 1, 2011