Endpoint Vulnerability

XSLT stylesheets treated as styles in Content Security Policy

Description

Mozilla security engineer Frederik Braun reported an issue where the implementation of Content Security Policy (CSP) is not in compliance with the specification. XSLT stylesheets must be subject to script-src directives but Mozilla's implementation of CSP treats them as styles. This could lead to unexpected script execution if the style-src directives were less restrictive than those for scripts.

Affected Products

Firefox

References

CVE-2014-1485,