The Stop Registration Spam plugin by Tom Royal contains a CSRF vulnerability that enables stored XSS attacks. This affects all versions up to 1.23. The vulnerability allows attackers to trick authenticated users into submitting unwanted requests, which can result in malicious scripts being stored and executed in the context of the affected application. The CVSS 3.1 score of 7.1 reflects network attack vector, low attack complexity, no privileges required, user interaction required, and impacts on confidentiality, integrity, and availability.

Successful exploitation can lead to stored XSS, allowing attackers to execute arbitrary scripts in the context of the victim's browser, potentially compromising user data and session integrity. The CSRF aspect means attackers can induce authenticated users to perform unintended actions, increasing the risk of unauthorized changes or data manipulation. The overall impact affects confidentiality, integrity, and availability at a low level each, but combined they present a significant risk.

No official patch or remediation is currently available. Users should monitor the vendor's advisory channels for updates. Until a fix is released, consider disabling or restricting access to the Stop Registration Spam plugin to trusted administrators only. Avoid actions that require user interaction with untrusted sources to reduce CSRF risk. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.