Critical severity9.8NVD Advisory· Published Jun 11, 2018· Updated Jun 17, 2026
CVE-2018-5116
CVE-2018-5116
Description
WebExtensions with the "ActiveTab" permission are able to access frames hosted within the active tab even if the frames are cross-origin. Malicious extensions can inject frames from arbitrary origins into the loaded page and then interact with them, bypassing same-origin user expectations with this permission. This vulnerability affects Firefox < 58.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3- 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
- Range: unspecified
Patches
Vulnerability mechanics
References
5- www.securityfocus.com/bid/102786nvdThird Party AdvisoryVDB Entry
- www.securitytracker.com/id/1040270nvdThird Party AdvisoryVDB Entry
- usn.ubuntu.com/3544-1/nvdThird Party Advisory
- www.mozilla.org/security/advisories/mfsa2018-02/nvdVendor Advisory
- bugzilla.mozilla.org/show_bug.cginvdIssue TrackingPermissions Required
News mentions
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