The Stop Spammers Security plugin for WordPress is vulnerable to PHP Object Injection in versions up to, and including, 2022.5 via deserialization of untrusted input when issuing a CPATCHA challenge. This allows unauthenticated attackers to inject a PHP Object. No POP chain is present in the vulnerable plugin. If a POP chain is present via an additional plugin or theme installed on the target system, it could allow the attacker to delete arbitrary files, retrieve sensitive data, or execute code. Note: The official PHP recommendation is not to pass untrusted input to unserialize even if the allowed_classes option is set to false.
CVE-2022-4120 is a critical severity with CVSS 9.8 Vulnerability issue affecting the Plugin Stop Spammers Classic. It affects Versions up to 2022.5 and is fixed in 2022.6.
CVE-2022-4120 is tracked for the Plugin Stop Spammers Classic as critical severity with CVSS 9.8. The affected range is Versions up to 2022.5. Update Stop Spammers Classic to 2022.6 or newer where that version is compatible with the site.
| Software Type | Plugin |
|---|---|
| Software Slug |
stop-spammer-registrations-plugin
View on wordpress.org
|
| CVE | CVE-2022-4120 |
| Patched Versions |
2022.6
|
| Affected Versions |
Versions up to 2022.5
|
These internal links group the same WordPress plugin by CVE, issue type, severity, and patch status so operators and search engines can connect the full vulnerability cluster.
Stop Spammers Security <= 2022.6 - Reflected Cross-Site Scripting
Stop Spammers <= 2021.8 - Reflected Cross-Site Scripting
Anti-Spam: Spam Protection | Block Spam Users, Comments, Forms <= 2024.7 - Cross-Site Request Forgery to Multiple Administrative Actions
Stop Spammers Security | Block Spam Users, Comments, Forms <= 2024.4 - Cross-Site Request Forgery (CSRF) via sfs_process
Stop Spammers Security <= 2021.17 - Authenticated (Admin+) Stored Cross-Site Scripting
Stop Spammers Security <= 2022.6 - Authenticated (Admin+) Stored Cross-Site Scripting
Stop Spammers Classic <= 2026.1 - Cross-Site Request Forgery via Email Allowlist
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