CVE-2018-5116 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....
CriticalCVSS 9.8
EPSS 1.1%
- Published
- Updated
- Exploit status
- No public exploit known
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 products
| Product | Affected versions | Fixed in |
|---|---|---|
| mozilla Firefox | <= 57.0.4 | No fix listed |
| Canonical Ubuntu Linux | = 14.04 | No fix listed |
| Canonical Ubuntu Linux | = 16.04 | No fix listed |
| Canonical Ubuntu Linux | = 17.10 | No fix listed |
| mozilla Firefox | < 58 | 58 |
References
- 102786 third-party-advisory vdb-entry
- 1040270 third-party-advisory vdb-entry
- bugzilla.mozilla.org issue-tracking permissions-required
- USN-3544-1 third-party-advisory vendor-advisory
- www.mozilla.org vendor-advisory