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CVE-2026-1921— Loco Translate <= 2.8.2 - Authenticated (Translator+) Path Traversal to Limited File Read via 'ref' Parameter

Quick assessment

Affected
timwhitlock Loco Translate
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和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用PHP语言开发的博客平台。该平台具有在基于PHP和MySQL的服务器上架设个人博客网站的功能。WordPress plugin是一个应用插件。 WordPress plugin Loco Translate 2.8.2及之前版本存在路径遍历漏洞，该漏洞源于findSourceFile方法在规范化用户提供的包含../目录遍历序列的ref路径时未验证解析路径是否在预期目录内，可能导致路径遍历，允

CVSS 4.9 · Medium EPSS 0.64% · P49

Affected Version Matrix 1

VendorProduct Version RangeStatus
timwhitlock Loco Translate ≤ 2.8.2 affected
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I. Basic Information for CVE-2026-1921

Vulnerability Information
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Vulnerability Title
Loco Translate <= 2.8.2 - Authenticated (Translator+) Path Traversal to Limited File Read via 'ref' Parameter
Source: CVE Program / CVE List V5
Vulnerability Description
The Loco Translate plugin for WordPress is vulnerable to Path Traversal in all versions up to, and including, 2.8.2 via the `fsReference` AJAX route. This is due to the `findSourceFile()` method normalizing user-supplied `ref` paths containing `../` directory traversal sequences without validating that the resolved path remains within the intended bundle or content directory. This makes it possible for authenticated attackers, with Translator-level access and above (custom `loco_admin` capability required, granted to the `translator` role and administrators by default), to read arbitrary `.php`, `.js`, `.json`, and `.twig` files from the server filesystem outside the intended translation directory. Files named wp-config.php are excluded.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress plugin Loco Translate 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用PHP语言开发的博客平台。该平台具有在基于PHP和MySQL的服务器上架设个人博客网站的功能。WordPress plugin是一个应用插件。 WordPress plugin Loco Translate 2.8.2及之前版本存在路径遍历漏洞，该漏洞源于findSourceFile方法在规范化用户提供的包含../目录遍历序列的ref路径时未验证解析路径是否在预期目录内，可能导致路径遍历，允
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
timwhitlock Loco Translate 0 ~ 2.8.2 -

II. Public POCs for CVE-2026-1921

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III. Intelligence Information for CVE-2026-1921

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Vendor Advisories for CVE-2026-1921 (1)

IV. Related Vulnerabilities

Same product: Loco Translate
Same vendor: timwhitlock
Same weakness: CWE-22

V. Comments for CVE-2026-1921

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