CWE
79
Advisory Published
Updated

CVE-2015-4490: XSS

First published: Sun Aug 16 2015(Updated: )

The nsCSPHostSrc::permits function in dom/security/nsCSPUtils.cpp in Mozilla Firefox before 40.0 does not implement the Content Security Policy Level 2 exceptions for the blob, data, and filesystem URL schemes during wildcard source-expression matching, which might make it easier for remote attackers to conduct cross-site scripting (XSS) attacks by leveraging unexpected policy-enforcement behavior.

Credit: security@mozilla.org

Affected SoftwareAffected VersionHow to fix
Mozilla Firefox<=39.0.3
Ubuntu Linux=12.04
Ubuntu Linux=14.04
Ubuntu Linux=15.04
openSUSE=13.1
openSUSE=13.2
Oracle Solaris SPARC=11.3

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