Vulnerability in OnTheGoSystems WPML Multilingual CMS

[ Description ]Official description

WPML Multilingual CMS plugin for WordPress before 4.6.1 contains a reflected cross-site scripting vulnerability that allows unauthenticated attackers to inject script by supplying crafted input in the wp_lang parameter. Attackers can lure users to /wp-login.php with a wp_lang value injecting an image input with an obfuscated onfocus handler to execute JavaScript in the victim's browser. Exploitation evidence was first observed by the Shadowserver Foundation on 2025-11-12.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References

• github.com/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilities/wordpress/w…
• wpml.org/changelog/2023/03/wpml-4-6-1-important-security-update
• wpscan.com/vulnerability/b9cc519c-7ec2-42c3-9f42-01e928e12139
• www.vulncheck.com/advisories/wpml-multilingual-cms-wordpress-plugin-4.6.1-reflected-xss…