This vulnerability (CVE-2025-49411) in the Vikas Sharma iFrame Block plugin is classified as CWE-79, indicating improper neutralization of input during web page generation that results in Stored Cross-site Scripting (XSS). The issue affects all versions up to 0.1.1. The CVSS v3.1 base score is 7.1, reflecting network attack vector, low attack complexity, no privileges required, user interaction required, and impacts to confidentiality, integrity, and availability. The vulnerability allows an attacker to inject malicious scripts that persist and execute in the context of users viewing the affected pages. No patch or official fix information is currently available, and the product is not a cloud service.

Successful exploitation of this Stored XSS vulnerability can lead to partial compromise of confidentiality, integrity, and availability of affected systems or user data. Attackers may execute arbitrary scripts in the context of users, potentially leading to session hijacking, defacement, or other malicious actions. However, no known exploits are currently reported in the wild.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, users should consider disabling or restricting use of the affected iFrame Block plugin to mitigate risk. Monitor vendor channels for updates regarding patches or official mitigations.