Description
compose.php in SquirrelMail 1.4.22 calls unserialize for the $mailtodata value, which originates from an HTTP GET request. This is related to mailto.php.
References (1)
Core 1
Core References
Mailing List, Third Party Advisory x_refsource_misc
https://www.openwall.com/lists/oss-security/2020/06/20/1
Scores
CVSS v3
9.8
EPSS
0.0143
EPSS Percentile
69.7%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-502
Status
published
Products (1)
squirrelmail/squirrelmail
1.4.22
Published
Jun 20, 2020
Tracked Since
Feb 18, 2026