WordPress plugin
User Language Switch security & vulnerabilities
Unpatched vulnerability in the latest version
At least one vulnerability affects the latest version and no fix has been released. Deactivate the plugin or restrict access to the affected feature until the vendor ships a patch.
- Critical0
- High0
- Medium3
- Low0
All User Language Switch vulnerabilities
| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Medium4.4 | Authenticated (Administrator+) Stored Cross-Site Scripting via 'tab_color_picker_language_switch' Parameter ≤1.6.10No patch available | CVE-2026-0735 | |
| Medium5.5 | Authenticated (Administrator+) Server-Side Request Forgery via 'info_language' Parameter ≤1.6.10No patch available | CVE-2026-0745 | |
| Medium6.1 | Reflected Cross-Site Scripting ≤1.6.10No patch available | CVE-2025-49064 |
- Medium4.4Authenticated (Administrator+) Stored Cross-Site Scripting via 'tab_color_picker_language_switch' Parameter
≤1.6.10No patch available
- Medium5.5Authenticated (Administrator+) Server-Side Request Forgery via 'info_language' Parameter
≤1.6.10No patch available
- Medium6.1Reflected Cross-Site Scripting
≤1.6.10No patch available
User Language Switch: common questions
Does User Language Switch have known vulnerabilities?
Yes. VulnCrest Radar lists 3 known vulnerabilities in User Language Switch: 3 medium. At least one is not fixed in the latest version.
How do I check which version of User Language Switch I run?
In wp-admin open Plugins → Installed Plugins; the version is shown under the name. Without admin access, our passive Check my site tool can often read it from public files.
What is the most recent User Language Switch vulnerability?
CVE-2026-0735, published Feb 13, 2026: User Language Switch <= 1.6.10 - Authenticated (Administrator+) Stored Cross-Site Scripting via 'tab_color_picker_language_switch' Parameter. Severity: Medium (CVSS 4.4).
Is any User Language Switch vulnerability listed in CISA KEV?
No. None of the known User Language Switch vulnerabilities is currently listed in the CISA KEV catalog.