CVE-2025-12713 is a stored cross-site scripting vulnerability in the Soundslides WordPress plugin by wpoets. It affects all versions up to and including 1.4.2. The issue stems from improper neutralization of input during web page generation (CWE-79), specifically insufficient sanitization and escaping of user-supplied attributes in the soundslides shortcode. This allows authenticated attackers with Contributor or higher privileges to inject malicious scripts that execute in the context of users viewing the compromised pages. The vulnerability has a CVSS 3.1 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 without availability impact.

An attacker with Contributor-level or higher access can inject persistent malicious scripts into pages via the soundslides shortcode. These scripts execute in the browsers of users who visit the infected pages, potentially leading to partial confidentiality and integrity compromise of user data or session information. There is no direct impact on availability. The vulnerability could facilitate further attacks such as session hijacking or unauthorized actions performed by users viewing the injected content.

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 Soundslides plugin if feasible. Monitor for plugin updates from wpoets that address this vulnerability and apply them promptly once released.