CVE-2026-89412
Received Received - Intake

Stored XSS in TranslatePress WordPress Plugin

Publication date: 2026-09-22

Last updated on: 2026-09-22

Assigner: Wordfence

Description
The TranslatePress – Translate Multilingual sites with AI Translation plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Translation Memory Suggestion Panel (v-html on suggestion.original) in all versions up to, and including, 3.3.5 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Unauthenticated attackers can seed the translation dictionary's original column with executable HTML because the front-end rendering pipeline decodes entity-encoded payloads via html_entity_decode() before persistence, and the original column is deliberately exempt from kses filtering — meaning no save-time sanitizer neutralizes the stored payload before it is later rendered in an administrator's session.

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Meta Information

Published
2026-09-22
Last Modified
2026-09-22
Generated
2026-09-22
AI Q&A
2026-09-22
EPSS Evaluated
N/A
NVD
CVE-2026-89412
EUVD
EUVD-2026-84280

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
translatepress translate_multilingual_sites_with_ai_translation to 3.3.5 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

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Executive Summary

This vulnerability is a Stored Cross-Site Scripting (XSS) flaw in the TranslatePress WordPress plugin up to version 3.3.5. It allows unauthenticated attackers to inject malicious scripts via the Translation Memory Suggestion Panel. The issue occurs because user input is not properly sanitized before being stored in the translation dictionary's original column. When rendered, these scripts execute in the browser of any user accessing the infected page, including administrators.

Detection Guidance

This vulnerability can be detected by checking for stored XSS payloads in the Translation Memory Suggestion Panel of the TranslatePress plugin. Inspect WordPress database tables like wp_trp_translation_memory for suspicious HTML/script content in the original column. Review server access logs for unusual requests targeting the plugin's endpoints.

Impact Analysis

Unauthenticated attackers can exploit this to inject scripts that steal session cookies, perform actions on behalf of users, or redirect to malicious sites. Administrators viewing infected pages risk account compromise. The attack requires no user interaction beyond accessing a compromised page. The injected scripts execute in the context of the victim's browser.

Compliance Impact

This vulnerability could lead to unauthorized access to user data, violating GDPR's integrity and confidentiality principles. For HIPAA, it may expose protected health information if attackers access admin sessions. Both standards require safeguards against unauthorized data access, which this flaw undermines.

Mitigation Strategies

Immediately update the TranslatePress plugin to the latest version if available. Disable the Translation Memory Suggestion Panel feature if not required. Implement strict input validation for all user-supplied data. Monitor administrator sessions for unexpected script execution.

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