Description
An iframe sandbox element with the allow-popups flag could be bypassed when using noopener links. This could have led to security issues for websites relying on sandbox configurations that allowed popups and hosted arbitrary content. This vulnerability affects Firefox ESR < 78.1, Firefox < 79, and Thunderbird < 78.1.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Mozilla Firefox ESR
unspecified to < 78.1affected
Mozilla Firefox
unspecified to < 79affected
Mozilla Thunderbird
unspecified to < 78.1affected
References
- https://www.mozilla.org/security/advisories/mfsa2020-30/ ↗
- https://www.mozilla.org/security/advisories/mfsa2020-32/ ↗
- https://www.mozilla.org/security/advisories/mfsa2020-33/ ↗
- https://bugzilla.mozilla.org/show_bug.cgi?id=1521542 ↗
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00025.html ↗
- https://usn.ubuntu.com/4443-1/ ↗