CVE-2021-38497

EPSS 0.5%

Vexday Risk Score

3Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS —EPSS 0.5%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

03 Nov 2021Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

Through use of reportValidity() and window.open(), a plain-text validation message could have been overlaid on another origin, leading to possible user confusion and spoofing attacks. This vulnerability affects Firefox < 93, Thunderbird < 91.2, and Firefox ESR < 91.2.

Affected products

Mozilla · Firefox Mozilla · Firefox ESR Mozilla · Thunderbird

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References

https://bugzilla.mozilla.org/show_bug.cgi?id=1726621 https://www.mozilla.org/security/advisories/mfsa2021-43/https://www.mozilla.org/security/advisories/mfsa2021-45/https://www.mozilla.org/security/advisories/mfsa2021-47/