Description
When a HTTPS pages was embedded in a HTTP page, and there was a service worker registered for the former, the service worker could have intercepted the request for the secure page despite the iframe not being a secure context due to the (insecure) framing. This vulnerability affects Firefox < 84.
Metrics
CVSS 3.1 6.5/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:NAffected software
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | >= unspecified, < 84 |
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1674343Issue Tracking, Permissions Required, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2021/02/msg00001.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/02/msg00002.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202102-02Third Party Advisory
- https://www.debian.org/security/2021/dsa-4840Third Party Advisory
- https://www.debian.org/security/2021/dsa-4842Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-54/Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1674343Issue Tracking, Permissions Required, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2021/02/msg00001.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/02/msg00002.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202102-02Third Party Advisory
- https://www.debian.org/security/2021/dsa-4840Third Party Advisory
- https://www.debian.org/security/2021/dsa-4842Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-54/Vendor Advisory
Timeline
- Published
- Jan 7, 2021
- Last modified
- Jun 17, 2026
- NVD status
- Modified