CVE-2025-8400 is a reflected cross-site scripting vulnerability (CWE-79) in the aumsrini Image Gallery WordPress plugin affecting all versions up to 1.0.0. The issue arises from improper neutralization of input during web page generation, allowing unauthenticated attackers to inject malicious scripts that execute in the context of users accessing the affected pages. The vulnerability has a CVSS 3.1 base score of 6.1, with network attack vector, low attack complexity, no privileges required, user interaction required, scope changed, and low impact on confidentiality and integrity, with no impact on availability.

Successful exploitation can lead to execution of arbitrary scripts in the context of users visiting the injected pages, potentially leading to information disclosure or session hijacking. The impact is limited to confidentiality and integrity with no availability impact. The vulnerability requires user interaction and does not require authentication.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no patch or official fix information is provided, users should monitor the vendor's communications for updates. Until a fix is available, consider disabling or removing the vulnerable plugin to mitigate risk.