TYPO3 Exception 1581862822

Note

Below, the TYPO3 community may have provided additional information or solutions for this exception. However, these may or may not apply to your particular case. If you can provide more information, you should come back here and add your experience and solution steps to this issue once you have resolved it.

General TYPO3 troubleshooting tips can be found in the section “Troubleshooting” of the menu, and live support is available in the TYPO3 Slack channel #typo3-cms.

To add your experience, click “Edit on GitHub” above and follow the “Edit on GitHub” workflow. Also check out our tip on Coding Style and reST.

This error might be caused by inserting content into a Fluid template by

If the TypoScript object uses a insertData = 1 or the datawrap curly braces might get parsed, see https://docs.typo3.org/m/typo3/reference-typoscript/main/en-us/Functions/Stdwrap.html?highlight=insertdata.

So, the serialized value of the hidden form field tx_form_formframework[__trustedProperties] get’s parsed, too. The following HMAC validation throws the exception, because the __trustedProperties is broken.