CVE-2023-54413
WPML Multilingual CMS WordPress Plugin < 4.6.1 Reflected XSS via wp-login.php wp_lang
- State
- Published
- Severity
- 5.1 Medium
- Published
- Oct 22, 2026
- Updated
- Oct 22, 2026
- Reserved
- Oct 14, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.1 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N | VulnCheck |
| 3.1 | 6.1 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N | VulnCheck |
Weaknesses
- CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Products
| Product | Versions |
|---|---|
WPML Multilingual CMSOnTheGoSystems |
|
References
- WPML 4.6.1 – Important Security Updatevendor-advisory
- WPScan Advisorythird-party-advisory
- Nuclei Templatetechnical-description
- VulnCheck Advisory: WPML Multilingual CMS WordPress Plugin < 4.6.1 Reflected XSS via wp-login.php wp_langthird-party-advisory
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