CVE-2024-11731 describes a stored Cross-Site Scripting vulnerability in the averta Master Slider – Responsive Touch Slider WordPress plugin. The flaw exists due to improper neutralization of input in the ms_slider shortcode, allowing authenticated users with contributor or higher privileges to inject arbitrary scripts. These scripts execute in the context of users viewing the compromised pages. The vulnerability affects all versions up to 3.10.7 and was partially fixed in version 3.10.8. The CVSS 3.1 base score is 6.4, reflecting network attack vector, low attack complexity, required privileges at the contributor level, no user interaction, and impacts on confidentiality and integrity with no availability impact.

An attacker with contributor-level access or higher can exploit this vulnerability to inject persistent malicious scripts into pages using the ms_slider shortcode. These scripts execute in the browsers of users who visit the infected pages, potentially leading to unauthorized actions or data exposure within the context of the affected site. The impact is limited to confidentiality and integrity, with no direct availability impact. There are no known exploits in the wild at this time.

This vulnerability was partially fixed in version 3.10.8 of the Master Slider plugin. Users should upgrade to version 3.10.8 or later to benefit from the partial fix. Since no official patch link is provided, verify the vendor's advisory or plugin update notes for the latest remediation status. Until fully patched, restrict contributor-level access to trusted users and review content submitted via the ms_slider shortcode for malicious input.