Translate WordPress and go Multilingual – Weglot <= 6.4.2 - Unauthenticated Stored Cross-Site Scripting via Translated Link URLs
- ID
- WPSEC-2026-1049
- Plugin
- Translate WordPress with Weglot 2.0 – Multilingual AI Translation (weglot)
- Affected
- all versions before 6.4.3
- Remediation
- Update to 6.4.3 or later.
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
- Weakness
- CWE-79
- Usage
- Plugin Medium · Affected versions Medium among sites WPSec scans, 2026-10-16
- Attack surface
- Translate WordPress and go Multilingual – Weglot on WPSec AttackSurface
- Fix released
- Published
Description
The Translate WordPress with Weglot 2.0 plugin for WordPress is vulnerable to Stored Cross-Site Scripting via rewritten internal link URLs on translated pages in all versions up to, and including, 6.4.2, due to the plugin URL-decoding the path of internal links and writing the rewritten URL back into HTML attributes (link href, data-link, data-url, data-cart-url, form action, and canonical/next/prev/amphtml links) without output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts that execute whenever a user opens a translated page. The attacker plants a percent-encoded URL in content shown on the site, such as the 'Website' field of a comment when the site accepts comments.
References
- https://wpsec.com/vuln/WPSEC-2026-1049/
- https://plugins.svn.wordpress.org/weglot/tags/6.4.3/
- https://wordpress.org/plugins/weglot/
Published by WPSec. Provided as is, without warranty. Corrections: contact us.
This advisory as JSON or Markdown · All advisories: JSON, RSS