The Contest Gallery – Upload & Vote Photos, Media, Sell with PayPal & Stripe WordPress plugin contains a stored XSS vulnerability identified as CVE-2025-6716. This vulnerability is due to improper neutralization of input during web page generation (CWE-79) in the 'upload[1][title]' parameter. Authenticated attackers with Author-level privileges can inject arbitrary web scripts that persist and execute in the context of other users viewing the injected content. The flaw affects all versions up to and including 26.0.8. The CVSS 3.1 base score is 6.4, reflecting network attack vector, low attack complexity, required privileges at the Author level, no user interaction, and impacts on confidentiality and integrity with no availability impact.

Successful exploitation allows an authenticated user with Author-level access or higher to inject persistent malicious scripts into pages generated by the plugin. This can lead to unauthorized actions performed in the context of other users, potentially compromising confidentiality and integrity of user data. There is no indication of availability impact. No known active exploitation has been reported.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict Author-level access to trusted users only and consider disabling or limiting use of the vulnerable plugin functionality. Monitor vendor channels for updates and apply patches promptly once released.