CVE-2025-62733

Root

Cause The Custom Sidebars by ProteusThemes WordPress plugin, versions up to and including 1.0.3, contains a Cross-Site Request Forgery (CSRF) vulnerability. This flaw stems from insufficient nonce validation or missing anti-CSRF tokens in critical state-changing operations [1].

Exploitation

To exploit this vulnerability, an attacker must trick a logged-in privileged user (e.g., an administrator) into clicking a malicious link, visiting a specially crafted page, or submitting a form. No direct authentication is needed from the attacker beyond luring the target [1].

Impact

Successful exploitation allows an attacker to force the victim user to perform unintended actions within the plugin's administrative interfaces, such as modifying sidebar configurations or overwriting widget assignments, under their existing session [1].

Mitigation

The vulnerability has been patched in a version beyond 1.0.3 (none specified). Users should immediately update the plugin to the latest available version or implement a Web Application Firewall (WAF) rule as a temporary workaround [1].