CVE-2024-6264 is a stored cross-site scripting vulnerability (CWE-79) in the WordPress Post Meta Data Manager plugin by gandhihitesh9. The issue exists in the ‘$meta_key’ parameter due to inadequate sanitization and escaping of user input. Authenticated attackers with Contributor-level privileges or higher can inject arbitrary web scripts that persist and execute in the context of users viewing the injected pages. This vulnerability affects all versions up to 1.2.3. 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, and partial confidentiality and integrity impact with no availability impact. No patch or vendor advisory is currently available, and no known exploits have been reported.

An attacker with Contributor-level or higher access can exploit this vulnerability to inject persistent malicious scripts into pages, potentially leading to partial confidentiality and integrity compromise of affected users. This could allow theft of user session data or manipulation of page content when other users access the injected pages. There is no impact on availability. 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 removing or disabling the Post Meta Data Manager plugin if it is not essential. Monitor for updates from the plugin author or WordPress security channels for a patch or official mitigation.