CVE-2024-4635 is a stored cross-site scripting vulnerability in the Menu Icons by ThemeIsle WordPress plugin, present in versions up to 0.13.13. The issue stems from improper neutralization of input in the 'add_mime_type' function, allowing authenticated users with author-level permissions or higher to inject arbitrary web scripts. These scripts execute when any user accesses the injected page, potentially leading to session hijacking or other script-based attacks. The vulnerability has a CVSS 3.1 score of 6.4, reflecting network attack vector, low attack complexity, and privileges required at the author level.

An attacker with author-level permissions or higher can exploit this vulnerability to inject and store malicious scripts that execute in the context of other users viewing the affected pages. This can lead to information disclosure or session hijacking. The vulnerability does not impact availability and requires authenticated access, limiting its scope but still posing a significant risk within compromised or trusted user environments.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict author-level permissions to trusted users only and consider disabling or removing the vulnerable plugin. Monitor for updates from ThemeIsle regarding patches or official mitigations.