CVE-2025-23425

CVE-2025-23425 is an Improper Neutralization of Input During Web Page Generation vulnerability, classified as Reflected Cross-site Scripting (XSS) under CWE-79, in the marekkis-watermark WordPress plugin developed by marekki under the name Marekkis Watermark. The issue affects all versions of the plugin from n/a through 0.9.4 inclusive.

With a CVSS v3.1 base score of 7.1 (AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L), the vulnerability can be exploited remotely by unauthenticated attackers with low complexity, though it requires user interaction such as clicking a malicious link. Exploitation enables limited impacts on confidentiality, integrity, and availability within a changed scope, potentially allowing attackers to inject and execute arbitrary scripts in the context of a victim's browser session.

The primary advisory is available from Patchstack at https://patchstack.com/database/Wordpress/Plugin/marekkis-watermark/vulnerability/wordpress-marekkis-watermark-plugin-0-9-4-reflected-cross-site-scripting-xss-vulnerability?_s_id=cve, which documents the vulnerability in the WordPress plugin context for mitigation details.