Vulnerability · Published Dec 26, 2022 · Assigned by WPScan

CVE-2022-4120Stop Spammers Security < 2022.6 - Unauthenticated PHP Object Injection

Critical 9.8

In plain English

A critical-severity security flaw in Stop Spammers Security | Block Spam Users, Comments, Forms from Unknown. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 18.1% (higher than 97% of all known vulnerabilities).

Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)18.1%top 2.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official 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

Affected products (as reported)

VendorProductVersions
Unknown Stop Spammers Security | Block Spam Users, Comments, Forms 0 – before 2022.6

References