The Powerkit WordPress plugin suffers from a stored XSS vulnerability due to improper neutralization of input in shortcode attributes. This allows authenticated users with contributor or higher privileges to inject arbitrary JavaScript into pages, which executes in the context of users viewing those pages. The vulnerability affects all versions up to and including 2.9.1. The CVSS 3.1 base score is 6.4, reflecting network attack vector, low attack complexity, required privileges at the contributor level, no user interaction, and impacts on confidentiality and integrity with no availability impact. No patch or remediation details are currently provided.

An attacker with contributor-level or higher permissions can inject persistent malicious scripts into pages via shortcode attributes. This can lead to unauthorized actions performed in the context of other users, potentially compromising user data confidentiality and integrity. The vulnerability does not impact availability. There are no known active exploits reported.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict contributor-level permissions to trusted users only and consider disabling or limiting the use of the vulnerable plugin shortcodes. Monitor for updates from the vendor or security advisories for a patch or official mitigation.