CVE-2017-5386
High
CVE-2017-5386
WebExtension scripts can use the "data:" protocol to affect pages loaded by other web extensions using this protocol, leading to potential data disclosure or privilege escalation in affected extensions. This vulnerability affects Firefox ESR < 45.7 and Firefox < 51.
Exploit probability
2.3%
Published
June 11, 2018
Required by
Not available
Last source change
April 16, 2026
02 / AFFECTED SOFTWARE
Affected packages
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
Open Source Vulnerabilities
CVE-2017-5386
View original source
WebExtension scripts can use the "data:" protocol to affect pages loaded by other web extensions using this protocol, leading to potential data disclosure or privilege escalation in affected extensions. This vulnerability affects Firefox ESR < 45.7 and Firefox < 51.
05 / REFERENCES
Further evidence
- http://rhn.redhat.com/errata/RHSA-2017-0190.html
- http://www.securityfocus.com/bid/95769
- http://www.securitytracker.com/id/1037693
- https://bugzilla.mozilla.org/show_bug.cgi?id=1319070
- https://security.gentoo.org/glsa/201702-22
- https://www.debian.org/security/2017/dsa-3771
- https://www.mozilla.org/security/advisories/mfsa2017-01/
- https://www.mozilla.org/security/advisories/mfsa2017-02/