CVE-2026-0735

The User Language Switch plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'tab_color_picker_language_switch' parameter in all versions up to, and including, 1.6.10 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

CVSS v3 4.4 MEDIUM

4.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.3 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://plugins.trac.wordpress.org/browser/user-language-switch/tags/1.6.10/uls-options.php#L365
https://plugins.trac.wordpress.org/browser/user-language-switch/trunk/uls-options.php#L365
https://www.wordfence.com/threat-intel/vulnerabilities/id/c6f61e13-20fb-4cef-bae7-2cd5fa038175?source=cve

Configurations

No configuration.

History

15 Apr 2026, 00:35

Type	Values Removed	Values Added
Summary		(es) El plugin User Language Switch para WordPress es vulnerable a Cross-Site Scripting Almacenado a través del parámetro 'tab_color_picker_language_switch' en todas las versiones hasta la 1.6.10, inclusive, debido a una sanitización de entrada y un escape de salida insuficientes. Esto permite a atacantes autenticados, con acceso de nivel de administrador y superior, inyectar scripts web arbitrarios en páginas que se ejecutarán cada vez que un usuario acceda a una página inyectada. Esto solo afecta a instalaciones multisitio y a las instalaciones donde se ha deshabilitado unfiltered_html.

14 Feb 2026, 07:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-02-14 07:16

Updated : 2026-06-17 10:11

NVD link : CVE-2026-0735

Mitre link : CVE-2026-0735

CVE.ORG link : CVE-2026-0735

JSON object : View

Products Affected

No product.

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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