High severity7.5NVD Advisory· Published Jun 11, 2018· Updated Jun 17, 2026
CVE-2018-5134
CVE-2018-5134
Description
WebExtensions may use "view-source:" URLs to view local "file:" URL content, as well as content stored in "about:cache", bypassing restrictions that only allow WebExtensions to view specific content. This vulnerability affects Firefox < 59.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
4<59+ 1 more
- (no CPE)range: <59
- (no CPE)range: unspecified
- osv-coords2 versionspkg:rpm/opensuse/firefox-esr&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/MozillaFirefox&distro=openSUSE%20Tumbleweed
< 128.5.1-1.1+ 1 more
- (no CPE)range: < 128.5.1-1.1
- (no CPE)range: < 92.0-1.2
Patches
Vulnerability mechanics
References
5- www.securityfocus.com/bid/103386nvdThird Party AdvisoryVDB Entry
- www.securitytracker.com/id/1040514nvdThird Party AdvisoryVDB Entry
- usn.ubuntu.com/3596-1/nvdThird Party Advisory
- www.mozilla.org/security/advisories/mfsa2018-06/nvdVendor Advisory
- bugzilla.mozilla.org/show_bug.cginvdPermissions Required
News mentions
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