The WP Social Stream plugin suffers from a CSRF vulnerability that enables stored XSS attacks. This means an attacker can trick an authenticated user into submitting a crafted request that results in malicious script being stored and executed in the context of the affected site. The vulnerability affects all versions up to 1.1. The CVSS 3.1 base score is 7.1, reflecting network attack vector, low attack complexity, no privileges required, user interaction required, scope changed, and low impact 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. This can result in session hijacking, defacement, or other malicious actions within the scope of the affected site. The CSRF aspect means attackers can induce authenticated users to perform unintended actions without their consent. The overall impact is rated high due to the combination of CSRF and stored XSS.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, users should consider disabling the WP Social Stream plugin or restricting its use to trusted users only. Monitoring for suspicious activity related to stored XSS may help detect exploitation attempts.