The HT Mega – Absolute Addons For Elementor plugin for WordPress suffers from a stored cross-site scripting vulnerability (CWE-79) in the Countdown widget's attributes. This vulnerability allows authenticated users with contributor or higher privileges to inject arbitrary web scripts due to inadequate input sanitization and output escaping. The malicious scripts execute when any user accesses the compromised page, potentially leading to session hijacking or other script-based attacks. The vulnerability affects all plugin versions up to and including 2.4.9. The CVSS 3.1 base score is 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. No official patch or remediation details are currently available from the vendor or other advisories.

An authenticated attacker with contributor or higher privileges can inject persistent malicious scripts into pages via the Countdown widget attributes. These scripts execute in the context of users viewing the affected pages, potentially compromising user sessions or performing unauthorized actions. The impact includes partial loss of confidentiality and integrity but no availability impact. The vulnerability requires authentication with low privileges and can be exploited remotely over the network.

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 Countdown widget if feasible. Monitor for plugin updates from devitemsllc and apply any official patches promptly once released.