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CVE-2023-54413— WPML Multilingual CMS WordPress Plugin < 4.6.1 Reflected XSS via wp-login.php wp_lang

Quick assessment

Affected
OnTheGoSystems WPML Multilingual CMS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WordPress 的 WPML Multilingual CMS 插件在 4.6.1 版本之前存在反射型跨站脚本（XSS）漏洞。未认证的攻击者可通过在 参数中提交精心构造的输入，注入恶意脚本。攻击者可诱骗用户访问带有特定 值的 页面，该值中包含一个经过混淆处理的 事件处理程序的图像输入，从而在受害者的浏览器中执行 JavaScript 代码。Shadowserver 基金会于 2025 年 11 月 12 日首次观察到该漏洞的利用证据。

CVSS 6.1 · Medium
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I. Basic Information for CVE-2023-54413

Vulnerability Information
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Vulnerability Title
WPML Multilingual CMS WordPress Plugin < 4.6.1 Reflected XSS via wp-login.php wp_lang
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
OnTheGoSystems WPML Multilingual CMS 0 ~ 4.6.1 -

II. Public POCs for CVE-2023-54413

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III. Intelligence Information for CVE-2023-54413

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Other References for CVE-2023-54413 (4)

IV. Related Vulnerabilities

Same product: WPML Multilingual CMS
Same vendor: OnTheGoSystems
Same weakness: CWE-79

V. Comments for CVE-2023-54413

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