The vulnerability CVE-2025-30573 affects the mrdenny My Default Post Content plugin (versions <= 0.7.3) and is classified as stored cross-site scripting due to improper input neutralization during web page generation. This allows an attacker with high privileges and requiring user interaction to inject malicious scripts that can impact confidentiality, integrity, and availability to a limited extent. The CVSS vector indicates network attack vector, low attack complexity, high privileges required, and user interaction needed, with a scope change.

Successful exploitation could allow an attacker to execute arbitrary scripts in the context of affected users' browsers, potentially leading to limited confidentiality, integrity, and availability impacts. However, exploitation requires high privileges and user interaction, which reduces the overall risk. No known active exploits have been reported.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a patch is available, restrict high-privilege users from untrusted input and apply web application firewall rules to detect and block XSS payloads related to this plugin.