Deserialization of Untrusted Data in SquirrelMail - CVE-2020-14933
Published: June 20, 2020 / Updated: August 8, 2020
Vulnerability identifier: #VU34208
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-14933
CWE-ID: CWE-502
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
compose.php in SquirrelMail 1.4.22 calls unserialize for the $attachments value, which originates from an HTTP POST request.
Affected software
SquirrelMail
How to mitigate CVE-2020-14933
Install update from vendor's website.