What’s Vulnerable › Vulnerabilities

CVE-2020-14933

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-06-20 · updated 2026-06-17
• Weakness: CWE-502

Description

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).

Affected products

• SquirrelMail: 1.4.22

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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