Description
The Content Security Policy (CSP) implementation in Mozilla Firefox before 27.0 and SeaMonkey before 2.24 operates on XSLT stylesheets according to style-src directives instead of script-src directives, which might allow remote attackers to execute arbitrary XSLT code by leveraging insufficient style-src restrictions.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | MozillaFirefox | 50.1.0-1.1 | openSUSE-SU-2024:10071-1 |
| openSUSE Tumbleweed | firefox-esr | 128.5.1-1.1 | openSUSE-SU-2024:14572-1 |
Advisories 2
- openSUSE-SU-2024:14572-1 firefox-esr-128.5.1-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10071-1 MozillaFirefox-50.1.0-1.1 on GA media SUSE / openSUSE Security Updates · May 7, 2025
References
- openSUSE-SU-2014:0212 vendor-advisory
- 1029717 vdb-entry
- https://8pecxstudios.com/?page_id=44080
- 56787 third-party-advisory
- 1029720 vdb-entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=910139
- USN-2102-2 vendor-advisory
- GLSA-201504-01 vendor-advisory
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
- 56888 third-party-advisory
- openSUSE-SU-2014:0419 vendor-advisory
- 65322 vdb-entry
- firefox-xslt-cve20141485xss(90891) vdb-entry
- SUSE-SU-2014:0248 vendor-advisory
- USN-2102-1 vendor-advisory
- 56767 third-party-advisory
- 102871 vdb-entry
- 56706 third-party-advisory
- http://www.mozilla.org/security/announce/2014/mfsa2014-07.html