CVE-2015-4490

The nsCSPHostSrc::permits function in dom/security/nsCSPUtils.cpp in Mozilla Firefox before 40.0 does not implement the Content Security Policy Level 2…

published August 16, 2015

CVSS
—
EPSS
2%
Percentile
84.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.02443 · 84.2th percentile
Published
2015-08-16T01:00Z
EPSS history
Timeline
  • 16 AUG 01:00Z
    The nsCSPHostSrc::permits function in dom/security/nsCSPUtils.cpp in Mozilla Firefox before 40.0 does not implement the Content Security Policy Level 2…
    cvelistv5