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CVE-2021-38497

Date: November 2, 2021

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.

Severity Score

Related Resources (9)

https://nvd.nist.gov/vuln/detail/CVE-2021-38497
https://people.canonical.com/~ubuntu-security/cve/CVE-2021-38497
https://access.redhat.com/security/cve/CVE-2021-38497
https://bugzilla.mozilla.org/show_bug.cgi?id=1726621
https://www.mozilla.org/security/advisories/mfsa2021-47/
https://security.alpinelinux.org/vuln/CVE-2021-38497
https://www.mozilla.org/security/advisories/mfsa2021-43/
https://www.mozilla.org/security/advisories/mfsa2021-45/
https://www.mend.io/vulnerability-database/CVE-2021-38497

Severity Score

Weakness Type (CWE)

Origin Validation Error

CWE-346

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): HIGH
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): PARTIAL
Availability (A): NONE
Additional information:

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