CVE-2023-38499
LowCVSS 3.7Exploitation Probability (EPSS)
Elevated risk54th percentile - higher than 54% of all known CVEs
Summary
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.
Risk Assessment
Organizations may be exposed to unauthorized access to sensitive content, potentially leading to data leaks or privacy violations. Possible consequences include loss of user trust and legal issues related to data protection.
Recommendation
It is recommended to update TYPO3 to versions 9.5.42 ELTS, 10.4.39 ELTS, 11.5.30, or 12.4.4 to mitigate this vulnerability. Additionally, conducting a security audit of the application is advisable to identify other potential threats.
Other vulnerabilities in TYPO3
See all- CVE-2026-113459High
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.
- 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.
Original NVD description (English source)
TYPO3 is an open source PHP based web content management system. Starting in version 9.4.0 and prior to versions 9.5.42 ELTS, 10.4.39 ELTS, 11.5.30, and 12.4.4, in multi-site scenarios, enumerating the HTTP query parameters `id` and `L` allowed out-of-scope access to rendered content in the website frontend. For instance, this allowed visitors to access content of an internal site by adding handcrafted query parameters to the URL of a site that was publicly available. TYPO3 versions 9.5.42 ELTS, 10.4.39 ELTS, 11.5.30, 12.4.4 fix the problem.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS