Stored XSS in GPTranslate WordPress Plugin REST API Translation Storage
CVE-2026-9109 is a stored cross-site scripting vulnerability in the GPTranslate – Multilingual AI Translation for WordPress: Automatically Translate Websites plugin for WordPress affecting all versions up to and including 2.31. The issue is caused by insufficient input sanitization and output escaping in translation data handled through the plugin’s REST API translation storage workflow. An attacker can submit malicious translation payloads to the /wp-json/gptranslate/v1/request endpoint, where the payload is stored and later rendered in site pages. The plugin exposes a deterministically derived API key—described as the SHA-256 of the site URL—in the HTML source of every page via the JavaScript variable gptApiKey. Because any unauthenticated visitor can retrieve this key from page source, the REST endpoint can be abused without authentication or any additional precondition.
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Impact
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Mitigation
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Exploits
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No public exploit code observed for this vulnerability.
Recent activity
8 sources tracked across advisories and community write-ups. News coverage will land here when it surfaces.
No news coverage yet. Advisories and community discussion only.
The version that knows your environment.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.