This vulnerability (CVE-2024-43139) in Antoine Hurkmans Football Pool is a stored XSS issue caused by improper input sanitization during web page generation. It affects versions through 2.11.9 and allows attackers with low privileges and requiring user interaction to inject malicious scripts that can compromise confidentiality, integrity, and availability to a limited extent. The CVSS 3.1 vector indicates network attack vector, low attack complexity, low privileges required, user interaction required, and a scope change with low impact on confidentiality, integrity, and availability.

Successful exploitation of this vulnerability could allow an attacker to execute arbitrary scripts in the context of the affected application, potentially leading to limited disclosure of information, modification of data, or disruption of service. The impact is rated as medium severity with low confidentiality, integrity, and availability impacts. 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 released, users should exercise caution with untrusted input and consider implementing additional input validation or output encoding as a temporary mitigation. Monitor official channels for updates from Antoine Hurkmans regarding patches or workarounds.