CVE-2024-9703 is a stored cross-site scripting vulnerability in the Arconix Shortcodes plugin for WordPress, specifically affecting the 'button' shortcode. The issue stems from improper neutralization of input during web page generation, allowing authenticated users with contributor or higher privileges to inject arbitrary JavaScript code via shortcode attributes. This code executes in the context of users visiting the injected pages, potentially leading to session hijacking or other script-based attacks. The vulnerability affects all versions up to and including 2.1.12. 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, required privileges, no user interaction, scope change, and limited confidentiality and integrity impact without availability impact.

An authenticated attacker with contributor-level access or higher can inject persistent malicious scripts into pages via the vulnerable shortcode. These scripts execute in the browsers of users who visit the compromised pages, potentially leading to unauthorized actions such as session hijacking or data manipulation within the context of the affected site. The vulnerability does not impact availability and has limited confidentiality and integrity impact as per the CVSS vector. No known active exploitation has been reported.

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 Arconix Shortcodes plugin if not essential. Monitor for updates from tychesoftwares regarding a security patch.