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.
Published: 2015-08-16
Score: 4.3 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Advisories
Source ID Title
EUVD EUVD EUVD-2015-4510 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.
Ubuntu USN Ubuntu USN USN-2702-1 Firefox vulnerabilities
History

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Subscriptions

Canonical Ubuntu Linux
Mozilla Firefox
Opensuse Opensuse
Oracle Solaris
cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2024-08-06T06:18:11.636Z

Reserved: 2015-06-10T00:00:00.000Z

Link: CVE-2015-4490

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2015-08-16T01:59:18.080

Modified: 2025-04-12T10:46:40.837

Link: CVE-2015-4490

cve-icon Redhat

Severity : Moderate

Publid Date: 2015-08-11T00:00:00Z

Links: CVE-2015-4490 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses