CVE-2025-52771 describes a stored cross-site scripting (XSS) vulnerability in bcupham Video Expander versions up to and including 1.0. The issue arises from improper neutralization of input during web page generation, allowing malicious scripts to be stored and executed in the context of users viewing the affected pages. The CVSS 3.1 base score is 6.5 (medium), reflecting network attack vector, low attack complexity, low privileges required, user interaction needed, and partial impact on confidentiality, integrity, and availability.

Successful exploitation of this vulnerability could allow an attacker to execute arbitrary scripts in the context of the victim's browser, potentially leading to theft of sensitive information, session hijacking, or disruption of service. The impact is rated medium with partial confidentiality, integrity, and availability loss. There are no known exploits in the wild currently.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, users should apply standard XSS mitigations such as input validation and output encoding where possible. Monitor vendor channels for updates and patches addressing this vulnerability.