CVE-2026-9109
GPTranslate <= 2.31 - Unauthenticated Stored Cross-Site Scripting via REST API Translation Storage
Description
The GPTranslate – Multilingual AI Translation for WordPress: Automatically Translate Websites plugin for WordPress is vulnerable to Stored Cross-Site Scripting via REST API Translation Storage in all versions up to, and including, 2.31 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. The deterministically derived API key (sha256 of the site URL) is printed in the HTML source of every page via the JavaScript variable gptApiKey, meaning any unauthenticated visitor can retrieve the key and submit malicious translation payloads to the /wp-json/gptranslate/v1/request endpoint without any additional precondition.
INFO
Published Date :
June 13, 2026, 7:16 a.m.
Last Modified :
July 23, 2026, 9:10 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-9109
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Update the GPTranslate plugin to the latest version.
- Sanitize all user inputs.
- Escape output data properly.
- Review REST API input validation.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-9109.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-9109 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-9109
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-9109 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-9109 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Translated by [email protected]
Jul. 23, 2026
Action Type Old Value New Value Added Translation Title: plugin de WordPress GPTranslate, Description: El plugin GPTranslate - Multilingual AI Translation for WordPress: Automatically Translate Websites para WordPress es vulnerable a cross-site scripting almacenado a través del almacenamiento de traducción de la API REST en todas las versiones hasta la 2.31, inclusive, debido a la sanitización insuficiente de la entrada y al escape de la salida. Esto hace posible que atacantes no autenticados inyecten scripts web arbitrarios en páginas que se ejecutarán cada vez que un usuario acceda a una página inyectada. La clave API derivada determinísticamente (sha256 de la URL del sitio) se imprime en el código fuente HTML de cada página a través de la variable JavaScript gptApiKey, lo que significa que cualquier visitante no autenticado puede recuperar la clave y enviar cargas útiles de traducción maliciosas al endpoint /wp-json/gptranslate/v1/request sin ninguna precondición adicional. -
CVE Modified by [email protected]
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'john-dagelmore', 'product': 'GPTranslate – Multilingual AI Translation for WordPress: Automatically Translate Websites', 'versions': [{'status': 'affected', 'version': '0', 'versionType': 'semver', 'lessThanOrEqual': '2.31'}], 'defaultStatus': 'unaffected'}] -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 17, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-9109', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'yes'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-06-15T17:22:03.582274Z'} -
New CVE Received by [email protected]
Jun. 13, 2026
Action Type Old Value New Value Added Description The GPTranslate – Multilingual AI Translation for WordPress: Automatically Translate Websites plugin for WordPress is vulnerable to Stored Cross-Site Scripting via REST API Translation Storage in all versions up to, and including, 2.31 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. The deterministically derived API key (sha256 of the site URL) is printed in the HTML source of every page via the JavaScript variable gptApiKey, meaning any unauthenticated visitor can retrieve the key and submit malicious translation payloads to the /wp-json/gptranslate/v1/request endpoint without any additional precondition. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N Added CWE CWE-79 Added Reference https://plugins.trac.wordpress.org/browser/gptranslate/tags/2.27.5/assets/js/admin.js#L1 Added Reference https://plugins.trac.wordpress.org/browser/gptranslate/tags/2.27.5/gptranslate.php#L1134 Added Reference https://plugins.trac.wordpress.org/browser/gptranslate/tags/2.27.5/gptranslate.php#L3578 Added Reference https://plugins.trac.wordpress.org/browser/gptranslate/tags/2.27.5/gptranslate.php#L3654 Added Reference https://plugins.trac.wordpress.org/browser/gptranslate/tags/2.31/assets/js/admin.js#L1 Added Reference https://plugins.trac.wordpress.org/browser/gptranslate/tags/2.31/gptranslate.php#L1134 Added Reference https://plugins.trac.wordpress.org/browser/gptranslate/tags/2.31/gptranslate.php#L3578 Added Reference https://plugins.trac.wordpress.org/browser/gptranslate/tags/2.31/gptranslate.php#L3654 Added Reference https://plugins.trac.wordpress.org/browser/gptranslate/tags/2.32/assets/js/admin.js#L1 Added Reference https://plugins.trac.wordpress.org/browser/gptranslate/tags/2.32/gptranslate.php#L1104 Added Reference https://plugins.trac.wordpress.org/browser/gptranslate/tags/2.32/gptranslate.php#L3574 Added Reference https://www.wordfence.com/threat-intel/vulnerabilities/id/1c93b564-5428-4b0e-bbe8-f1e1e68940ac?source=cve