Unrated severityNVD Advisory· Published Aug 16, 2015· Updated Jun 17, 2026
CVE-2015-4490
CVE-2015-4490
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
10cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*range: <=39.0.3
- (no CPE)range: <40.0
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*+ 2 more
- cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:15.04:*:*:*:*:*:*:*
- cpe:2.3:o:oracle:solaris:11.3:*:*:*:*:*:*:*
- osv-coords2 versionspkg:rpm/opensuse/firefox-esr&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/MozillaFirefox&distro=openSUSE%20Tumbleweed
< 128.5.1-1.1+ 1 more
- (no CPE)range: < 128.5.1-1.1
- (no CPE)range: < 50.1.0-1.1
Patches
Vulnerability mechanics
References
10- lists.opensuse.org/opensuse-security-announce/2015-08/msg00014.htmlnvdThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2015-08/msg00015.htmlnvdThird Party Advisory
- www.mozilla.org/security/announce/2015/mfsa2015-91.htmlnvdVendor Advisory
- www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.htmlnvdThird Party Advisory
- www.ubuntu.com/usn/USN-2702-1nvdThird Party Advisory
- www.ubuntu.com/usn/USN-2702-2nvdThird Party Advisory
- bugzilla.mozilla.org/show_bug.cginvdIssue Tracking
- www.securitytracker.com/id/1033247nvd
- www.ubuntu.com/usn/USN-2702-3nvd
- security.gentoo.org/glsa/201605-06nvd
News mentions
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