CVE-2023-54413
Medium
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.
SeverityMedium
CVSS6.1
Exploit probability—
ProductWPML Multilingual CMS
PublishedOct 22, 2026
First seenOct 22, 2026
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Update
- OnTheGoSystems WPML Multilingual CMS4.6.1 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| OnTheGoSystems WPML Multilingual CMS | v < 4.6.1 | 4.6.1 |
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