High severity · published Jun 20, 2020
CVE-2020-14933
compose.php in SquirrelMail 1.4.22 calls unserialize for the $attachments value, which originates from an HTTP POST request
8.8
CVSS
1.4%
EPSS
No
On KEV
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).
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.4% · higher than 73% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SQ
Squirrelmail · Squirrelmail
1.4.22 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-14933
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-14933
Mailing List
https://www.openwall.com/lists/oss-security/2020/06/20/1
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