CVE-2026-113459
HighCVSS 7.1Exploitation Probability (EPSS)
Low risk31th percentile - higher than 31% of all known CVEs
Summary
In versions running on TYPO3 10 and 11, the configured OpenAI API key is embedded in every backend page so that the editor plugin can contact the OpenAI service directly from the browser. Any authenticated backend user can read the key and use it at the expense of the site operator. This only applies if an API key has been configured.
Risk Assessment
An authenticated backend user may abuse the exposed OpenAI API key at the site operator's expense, generating uncontrolled costs.
Recommendation
Update the extension to a patched version and, in the meantime, consider rotating the API key and restricting backend access.
Other vulnerabilities in TYPO3
See all- CVE-2026-46723Medium
The additional_tables configuration of the page and tt_content indexers accepts arbitrary table and field names. A backend user with permission to edit indexer configurations can copy sensitive data from internal TYPO3 tables into the search index.
- CVE-2026-46722Medium
The OOXML parsing of the file indexer does not disable external entity resolution. A crafted xlsx or pptx document placed in an indexed directory can cause local files to be read or outbound HTTP requests to be performed, with the retrieved content being written to the search index.
- CVE-2023-38499Low
TYPO3 is a PHP-based content management system that had a vulnerability in versions from 9.4.0 to 9.5.42 ELTS, 10.4.39 ELTS, 11.5.30, and 12.4.4, allowing out-of-scope access to content in multi-site scenarios. This enabled visitors to access internal site content by manipulating HTTP query parameters in the URL.
Original NVD description (English source)
In versions running on TYPO3 10 and 11, the configured OpenAI API key is embedded in every backend page, so that the editor plugin can contact the OpenAI service directly from the browser. Any authenticated backend user can read the key and use it at the expense of the site operator. This only applies if an API key has been configured.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS