CVE-2025-1491 is a stored cross-site scripting vulnerability in the WP Posts Carousel plugin for WordPress, affecting all versions up to and including 1.3.7. The vulnerability is due to improper neutralization of input in the 'auto_play_timeout' parameter, allowing authenticated users with Contributor-level permissions or higher to inject arbitrary web scripts. These scripts execute when other users access the injected pages, potentially leading to session hijacking or other script-based attacks. The vulnerability has a CVSS v3.1 base score of 6.4 (AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N), reflecting network attack vector, low attack complexity, and partial confidentiality and integrity impact.

An attacker with Contributor-level or higher access can inject persistent malicious scripts into pages via the vulnerable parameter. These scripts execute in the context of users viewing the affected pages, potentially compromising user sessions or performing unauthorized actions. The impact includes partial confidentiality and integrity loss but does not affect availability. There are no reports of exploitation in the wild.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict Contributor-level access to trusted users only and consider disabling or removing the WP Posts Carousel plugin if possible. Monitor vendor channels for updates and apply patches promptly once released.