CVE-2015-4490
MEDIUM severity · CVSS 4.3 · Cross-site scripting (XSS)
4.3CVSS MEDIUM
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexity—
Privileges required—
User interaction—
Confidentiality impactNone
Integrity impact—
Availability impactNone
Exploit probability (EPSS)3%
AV:N/AC:M/Au:N/C:N/I:P/A:N
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Additional information
- NVD record
- http://www.mozilla.org/security/announce/2015/mfsa2015-91.htmlAdvisory
- http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00014.htmlAdvisory
- http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00015.htmlAdvisory
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.htmlAdvisory
- http://www.securitytracker.com/id/1033247
- http://www.ubuntu.com/usn/USN-2702-1Advisory
- http://www.ubuntu.com/usn/USN-2702-2Advisory
- http://www.ubuntu.com/usn/USN-2702-3