Vulnerability CVE-2021-38497


Published: 2021-11-03

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.

Type:

CWE-346

(Origin Validation Error)

CVSS2 => (AV:N/AC:M/Au:N/C:N/I:P/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.3/10
2.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
None
Partial
None
Affected software
Mozilla -> Firefox 
Mozilla -> Firefox esr 
Mozilla -> Thunderbird 

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

Copyright 2021, cxsecurity.com

 

Back to Top