Information disclosure in John-Dagelmore Gptranslate – Multilingual Ai Translation Agent For WordPress: Translate Your Site With

CVE-2026-89278

The GPTranslate – Multilingual AI Translation Agent for WordPress: Translate Your Site with AI plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 2.34.6 via the enqueue_frontend_scripts. This makes it possible for unauthenticated attackers to extract the plaintext third-party AI provider API key (OpenAI, DeepL, xAI/Grok, Gemini, Claude, or Google Cloud Translation) — a credential granting billed account access — by fetching any public page and applying the inverse transformation bundled in the plugin's own public JavaScript asset. This exposure affects the default configuration (gpt-3.5-turbo in client mode) and all supported non-DeepSeek providers; only deepseek-* models and gpt-* models configured in server-proxy mode correctly suppress key emission.

Vulnerability class: Information Disclosure

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-89278?
CVE-2026-89278 is a medium-severity vulnerability in John-Dagelmore Gptranslate – Multilingual Ai Translation Agent For WordPress: Translate Your Site With, classified under Information Disclosure. CVSS score: 5.3/10. Published 2026-09-18.
How severe is CVE-2026-89278?
Medium severity. CVSS v3 base score is 5.3 out of 10.