The WP Post Disclaimer plugin for WordPress, developed by Krunal Prajapati, contains a stored cross-site scripting vulnerability (CWE-79) due to improper input sanitization during web page generation. This flaw affects all versions up to 1.0.3 and allows an attacker with low privileges to inject malicious scripts that execute in the context of other users. The CVSS 3.1 base score is 6.5, reflecting network attack vector, low attack complexity, required privileges, user interaction, and impacts on confidentiality, integrity, and availability at a low level. No vendor patch or official remediation has been published as of the data provided.

Successful exploitation of this vulnerability could allow an attacker to execute arbitrary scripts in the context of users viewing affected pages, potentially leading to information disclosure, session hijacking, or other impacts on confidentiality, integrity, and availability. The impact is rated medium, consistent with the CVSS score of 6.5. There are no reports of active exploitation in the wild.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should consider disabling or removing the WP Post Disclaimer plugin or restricting its usage to trusted users only. Monitor for vendor updates and apply patches promptly once available.