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CVE-2025-30083 is a cross-site scripting vulnerability in the codingms/additional-tca extension for TYPO3. According to the provided advisory, improperly encoded user input can be used by an authenticated TYPO3 backend user to create malicious output in an HTML context within the TYPO3 backend. The issue is therefore an authenticated backend-context XSS caused by insufficient output encoding of user-controlled data.
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