CVE-2019-11738 Information

Description

If a Content Security Policy (CSP) directive is defined that uses a hash-based source that takes the empty string as input execution of any javascript: URIs will be allowed. This could allow for malicious JavaScript content to be run bypassing CSP permissions. This vulnerability affects Firefox 69 and Firefox ESR 68.1.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

Reference

http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00011.html http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00017.html https://bugzilla.mozilla.org/show_bug.cgi?id=1452037 https://www.mozilla.org/security/advisories/mfsa2019-25/ https://www.mozilla.org/security/advisories/mfsa2019-26/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

LOW

Availability Impact

LOW

Base Score

LOW

Base Severity

6.3