CVE-2020-14933

8.8 highEPSS 1.4%

High (8.8) in squirrelmail squirrelmail. EPSS 1.4% chance of exploitation in the next 30 days.

compose.php in SquirrelMail 1.4.22 calls unserialize for the $attachments value, which originates from an HTTP POST request. NOTE: the vendor disputes this because these two conditions for PHP object injection are not satisfied: existence of a PHP magic method (such as __wakeup or __destruct), and any attack-relevant classes must be declared before unserialize is called (or must be autoloaded).

Severity

CVSS 3.1

8.8 high

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 1.4% chance of exploitation in the next 30 days; higher than 72% of CVEs (scores of 2026-10-31)
CWE: CWE-502
Published: 2020-06-20
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

squirrelmail:squirrelmail

References

https://www.openwall.com/lists/oss-security/2020/06/20/1
https://www.openwall.com/lists/oss-security/2020/06/20/1

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