CVE-2018-5112

Development Tools panels of an extension are required to load URLs for the panels as relative URLs from the extension manifest file but this requirement was not enforced in all instances. This could allow the development tools panel for the extension to load a URL that it should not be able to access, including potentially privileged pages. This vulnerability affects Firefox < 58.

• CWE-552

• http://www.securityfocus.com/bid/102786Third Party Advisory, VDB Entry
• http://www.securitytracker.com/id/1040270Third Party Advisory, VDB Entry
• https://bugzilla.mozilla.org/show_bug.cgi?id=1425224Issue Tracking, Permissions Required
• https://usn.ubuntu.com/3544-1/Third Party Advisory
• https://www.mozilla.org/security/advisories/mfsa2018-02/Vendor Advisory
• http://www.securityfocus.com/bid/102786Third Party Advisory, VDB Entry
• http://www.securitytracker.com/id/1040270Third Party Advisory, VDB Entry
• https://bugzilla.mozilla.org/show_bug.cgi?id=1425224Issue Tracking, Permissions Required
• https://usn.ubuntu.com/3544-1/Third Party Advisory
• https://www.mozilla.org/security/advisories/mfsa2018-02/Vendor Advisory

Published

Jun 11, 2018

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2018-5106Style editor traffic in the Developer Tools can be routed th…
• CVE-2018-5107The printing process can bypass local access protections to …
• CVE-2018-5108A Blob URL can violate origin attribute segregation, allowin…
• CVE-2018-5109An audio capture session can started under an incorrect orig…
• CVE-2018-5110If cursor visibility is toggled by script using from 'none' …
• CVE-2018-5111When the text of a specially formatted URL is dragged to the…
• CVE-2018-5113The "browser.identity.launchWebAuthFlow" function of WebExte…
• CVE-2018-5114If an existing cookie is changed to be "HttpOnly" while a do…
• CVE-2018-5115If an HTTP authentication prompt is triggered by a backgroun…
• CVE-2018-5116WebExtensions with the "ActiveTab" permission are able to ac…
• CVE-2018-5117If right-to-left text is used in the addressbar with left-to…
• CVE-2018-5118The screenshot images displayed in the Activity Stream page …