CVE-2024-12813 is a stored cross-site scripting vulnerability in the Open Hours – Easy Opening Hours WordPress plugin (up to version 1.0.9). The flaw exists due to improper neutralization of input in the 'open-hours-current-status' shortcode, which fails to sanitize and escape user-supplied attributes properly. Authenticated attackers with contributor or higher privileges can inject arbitrary JavaScript that executes in the context of users visiting the injected page, potentially leading to data disclosure or manipulation.

An attacker with contributor-level access or higher can exploit this vulnerability to inject malicious scripts that execute in the browsers of users visiting the compromised pages. This can lead to limited confidentiality and integrity impacts, such as theft of session tokens or unauthorized actions performed on behalf of users. There is no impact on availability. No known exploits are reported in the wild at this time.

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 removing or disabling the vulnerable shortcode. Monitor vendor channels for updates and apply patches promptly once released.