title: Stop Spammers Security < 2022.6 - Unauthenticated PHP Object Injection
description: The Stop Spammers Security | Block Spam Users, Comments, Forms WordPress plugin before 2022.6 passes base64 encoded user input to the unserialize() PHP function when CAPTCHA are used as second challenge, which could lead to PHP Object injection if a plugin installed on the blog has a suitable gadget chain
problem types: CWE-502 Deserialization of Untrusted Data
affected:
{
vendor: Unknown
product: Stop Spammers Security | Block Spam Users, Comments, Forms
versions:
status: affected, versionType: custom, version: 0, lessThan: 2022.6
defaultStatus: unaffected
collectionURL: https://wordpress.org/plugins
}