CVEvulnerability
CVE-2018-5116
9.8 CRITICAL
Official page ↗
- Status
- Modified
- Published
- 2018-06-11
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.0 ([email protected])
- 9.8 CRITICAL — CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 7.5 HIGH — AV:N/AC:L/Au:N/C:P/I:P/A:P
- Weaknesses
- CWE-346
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.
Affected configurations
• mozilla firefox (<= 57.0.4)
• canonical ubuntu linux 14.04
• canonical ubuntu linux 16.04
• canonical ubuntu linux 17.10
Related
Weakness · CWE (1)
- CWE-346 Origin Validation Error weakness
References
- http://www.securityfocus.com/bid/102786 Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1040270 Third Party Advisory, VDB Entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=1396399 Issue 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/102786 Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1040270 Third Party Advisory, VDB Entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=1396399 Issue Tracking, Permissions Required
- https://usn.ubuntu.com/3544-1/ Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-02/ Vendor Advisory