CVE-2019-16699: Improper Input Validation

May 24, 2022 (updated July 18, 2023)

The sr_freecap (aka freeCap CAPTCHA) extension 2.4.5 and below and 2.5.2 and below for TYPO3 fails to sanitize user input, which allows execution of arbitrary Extbase actions, resulting in Remote Code Execution.

References

extensions.typo3.org/extension/sr_freecap
github.com/advisories/GHSA-598p-rv6p-g7qc
nvd.nist.gov/vuln/detail/CVE-2019-16699
typo3.org/security/advisory/typo3-ext-sa-2019-018/

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