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.
Published: 2026-02-14
Score: 5.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Server‑Side Request Forgery
Action: Patch Now
AI Analysis

Impact

The User Language Switch plugin for WordPress contains a server‑side request forgery flaw that allows a user with Administrator privileges to supply any URL to an internal function. The missing validation enables the application to fetch data from arbitrary locations, including internal services, and may read or modify those services. This flaw reflects the input validation weakness identified by CWE‑918.

Affected Systems

WordPress sites that use the User Language Switch plugin distributed by webilop and run version 1.6.10 or earlier are affected. Versions newer than 1.6.10 are not listed as vulnerable.

Risk and Exploitability

The overall severity, measured by the CVSS score of 5.5, is moderate. The low estimation of exploitation likelihood (under 1%) combined with the absence of a public exploitation record suggests that successful attacks are unlikely without direct access. Attackers still need Administrator rights and the target must be reachable from the web server, so internal administrators with excessive privileges become a key risk factor.

Generated by OpenCVE AI on April 15, 2026 at 20:38 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Update the User Language Switch plugin to any version newer than 1.6.10.
  • If an immediate update is not possible, disable or uninstall the plugin until a secure version is available.
  • Reduce the number of users with Administrator credentials and enforce least‑privilege policies; additionally, monitor or restrict the server’s outbound network traffic to prevent unintended internal requests.

Generated by OpenCVE AI on April 15, 2026 at 20:38 UTC.

Tracking

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Advisories

No advisories yet.

History

Thu, 16 Apr 2026 14:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

 ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Wed, 08 Apr 2026 17:45:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N'}

 cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N'}

Tue, 17 Feb 2026 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Mon, 16 Feb 2026 12:15:00 +0000

Type Values Removed Values Added
First Time appeared Webilop
Webilop user Language Switch
Wordpress
Wordpress wordpress
Vendors & Products Webilop
Webilop user Language Switch
Wordpress
Wordpress wordpress

Sat, 14 Feb 2026 06:45:00 +0000

Type Values Removed Values Added
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.
Title User Language Switch <= 1.6.10 - Authenticated (Administrator+) Server-Side Request Forgery via 'info_language' Parameter
Weaknesses CWE-918
References
Metrics cvssV3_1

{'score': 7.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N'}

Subscriptions

Webilop User Language Switch
Wordpress Wordpress
cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published:

Updated: 2026-04-16T13:53:08.235Z

Reserved: 2026-01-08T18:43:02.867Z

Link: CVE-2026-0745

cve-icon Vulnrichment

Updated: 2026-02-17T15:39:12.496Z

cve-icon NVD

Status : Deferred

Published: 2026-02-14T07:16:09.113

Modified: 2026-04-15T00:35:42.020

Link: CVE-2026-0745

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-15T20:45:06Z

Weaknesses