VulnerabilityModified
CVE-2021-38497
This vulnerability affects Firefox < 93, Thunderbird < 91.2, and Firefox ESR < 91.2.
MEDIUM 6.5EPSS 0.55%
Does this matter?
Lower severity and a low EPSS score (0.55%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
- EPSS
- 0.55% probability · 44th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-346
- Affected
- mozilla/firefox · mozilla/firefox esr · mozilla/thunderbird
- Source
- security@mozilla.org
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1726621Permissions Required, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2021-43/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2021-45/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2021-47/Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1726621Permissions Required, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2021-43/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2021-45/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2021-47/Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.