The vulnerability identified as CVE-2025-58876 affects the Aparat Video Shortcode plugin by Ali Aghdam, specifically versions up to 0.2.4. It is a stored cross-site scripting (XSS) flaw caused by improper input neutralization during web page generation. This allows an attacker with low privileges and requiring user interaction to inject malicious scripts that can execute in the context of other users, potentially leading to partial confidentiality, integrity, and availability impacts. The vulnerability has a CVSS v3.1 score of 6.5, reflecting its medium severity. There is no vendor advisory or patch information available, and no known active exploitation has been reported.

Successful exploitation of this stored XSS vulnerability can allow an attacker to execute arbitrary scripts in the context of affected users, potentially leading to partial compromise of confidentiality, integrity, and availability of the affected system or user data. The attack requires user interaction and low privileges, limiting the ease of exploitation. No known exploits are currently reported in the wild.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should consider restricting plugin usage to trusted users only and apply web application firewall (WAF) rules to detect and block XSS payloads related to this plugin. Monitor for updates from the vendor or security advisories for an official patch.