CVE-2025-12451 is a stored cross-site scripting vulnerability in the Easy SVG Support plugin for WordPress, affecting all versions up to and including 4.0. The flaw arises from improper neutralization of input during web page generation, specifically insufficient sanitization and output escaping of uploaded SVG files. This allows authenticated users with Author-level access or higher to embed arbitrary scripts within SVG files, which execute when the SVG is viewed by other users. The CVSS 3.1 base score is 4.4, reflecting network attack vector, high attack complexity, high privileges required, no user interaction, and partial impact on confidentiality and integrity with no impact on availability.

An attacker with Author-level or higher privileges can exploit this vulnerability to inject malicious scripts into SVG files that are stored and later executed in the context of users viewing those files. This can lead to partial disclosure of information and modification of data within the affected WordPress site. There is no indication of availability impact or known exploits 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 Author-level access to trusted users only and consider disabling SVG uploads if possible. Monitor for updates from the plugin vendor or WordPress security advisories for a patch or official mitigation.