The Kadence Blocks — Page Builder Toolkit for Gutenberg Editor plugin for WordPress contains a stored cross-site scripting vulnerability (CWE-79) identified as CVE-2024-12581. This vulnerability exists due to improper neutralization of input during web page generation, specifically in admin settings. Authenticated attackers with administrator privileges can inject arbitrary web scripts that execute when users view the injected pages. The vulnerability affects multi-site WordPress installations and those with unfiltered_html disabled. The CVSS 3.1 vector indicates network attack vector, high attack complexity, high privileges required, no user interaction, and impacts confidentiality and integrity with low severity. No patch or remediation details are currently available.

An authenticated attacker with administrator-level permissions can exploit this vulnerability to inject and execute arbitrary scripts in the context of the affected WordPress site. This can lead to the compromise of user data confidentiality and integrity on multi-site installations or installations with unfiltered_html disabled. There is no indication of availability impact or known exploitation in the wild at this time.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, limit administrator access to trusted users only and consider monitoring for suspicious activity related to script injection. Avoid disabling unfiltered_html capability if possible in multi-site environments to reduce exposure.