The vulnerability CVE-2026-31914 in hookandhook WP Courses LMS (<= 3.2.26) is a DOM-based Cross-site Scripting (XSS) issue resulting from improper neutralization of input during web page generation. This allows an attacker with low privileges to craft input that, when processed by the vulnerable plugin, leads to execution of malicious scripts in the victim's browser. The CVSS 3.1 base score is 6.5 (medium), with attack vector network, low attack complexity, requiring privileges and user interaction, and impacts on confidentiality, integrity, and availability classified as low to low.

Successful exploitation can lead to execution of arbitrary scripts in the context of the affected web application, potentially allowing an attacker to steal sensitive information, manipulate content, or disrupt availability. The impact is limited by the requirement for low privileges and user interaction, and the overall severity is medium. There are no reports of active exploitation in the wild.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, users should exercise caution with input handling and consider restricting privileges or disabling the affected plugin if feasible. Monitor vendor channels for updates and apply patches promptly once released.