CVE-2015-4490
Medium
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.
SeverityMedium
CVSS4.3
Exploit probability—
Product
Mozilla Firefox
PublishedAug 16, 2015
First seenAug 16, 2015
How to fix
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mozilla firefox | v ≤ 39.0.3 | — |
| canonical ubuntu_linux | 12.04, 14.04, 15.04 | — |
| opensuse opensuse | 13.1, 13.2 | — |
| oracle solaris | 11.3 | — |
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