QID 730781

Date Published: 2023-04-10

QID 730781: WordPress Plugin Stop Spammers Security Hypertext Preprocessor (PHP) Object injection Vulnerability

Stop spam emails, spam comments, spam registration, and spam bots and spammers in general. Run diagnostic tests, view activity, and much more with this well-maintained, mature plugin.

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 Versions:
Stop Spammers Security WordPress plugin version prior to 2022.6

QID Detection Logic(Unauthenticated): This QID checks for vulnerable WordPress Plugin Stop Spammers Security version by sending GET request to endpoint "/wp-content/plugins/stop-spammer-registrations-plugin/readme.txt".

Successful exploitation of this vulnerability may allow an attacker to perform different kinds of malicious attacks, such as Code Injection, SQL Injection, Path Traversal and Application Denial of Service using PHP Object injection vulnerability.

CVSS V3 rated as Critical - 9.8 severity.

CVSS V2 rated as High - 7.5 severity.

Solution

Customers are advised to install Stop Spammers Security 2022.6 or later version to remediate this vulnerability.

Vendor References

Stop Spammers Security Plugin Release Notes - wordpress.org/plugins/stop-spammer-registrations-plugin/#developers

CVEs related to QID 730781

CVE-2022-4120 |

Software Advisories

Advisory ID	Software	Component	Link
Stop Spammers Security Plugin Release Notes			wordpress.org/plugins/stop-spammer-registrations-plugin/#developers

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