CVE-2021-38509

Description

Due to an unusual sequence of attacker-controlled events, a Javascript alert() dialog with arbitrary (although unstyled) contents could be displayed over top an uncontrolled webpage of the attacker's choosing. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.

References

https://www.mozilla.org/security/advisories/mfsa2021-50/

https://www.mozilla.org/security/advisories/mfsa2021-49/

https://www.mozilla.org/security/advisories/mfsa2021-48/

https://bugzilla.mozilla.org/show_bug.cgi?id=1718571

https://www.debian.org/security/2021/dsa-5026

https://lists.debian.org/debian-lts-announce/2021/12/msg00030.html

https://www.debian.org/security/2022/dsa-5034

https://lists.debian.org/debian-lts-announce/2022/01/msg00001.html

https://security.gentoo.org/glsa/202202-03

https://security.gentoo.org/glsa/202208-14

Details

Risk Information

CVSS v2

CVSS v3