Value of tag attribute "value" cannot be of type array with upload field when confirmation page is active

[ceekay73]

Hello,

Powermail shows the error above when submitting a form with upload fields present: Url has this parmeters:
/?tx_powermail_pi1[action]=checkConfirmation&tx_powermail_pi1[controller]=Form

When I disable Confirmation Page or disable the upload field all works well.

Error Log shows:
Core: Exception handler (WEB): Uncaught TYPO3 Exception: #1709565127: Value of tag attribute "value" cannot be of type array. | InvalidArgumentException thrown in file /var/www/vhosts/php-sources/typo3_src-12/vendor/typo3fluid/fluid/src/Core/ViewHelper/TagBuilder.php in line 217

Evironment:
Powermail 12.5.1 no custom templates
TYPO3 12.4.28
PHP 8.2.28

Might be related to #1004 but it doesn't even display the comfirmation template.

Thanks for checking.

[EvilBMP]

I can confirm this. The attributeValue in TagBuilder::addAttribute() is set with the post data of the file upload - e.g.

array(5) {
  ["name"]=> string(8) "test.pdf"
  ["type"]=> string(15) "application/pdf"
  ["error"]=> int(0)
  ["size"]=> int(3908)
  ["tmp_name"]=> string(14) "/tmp/phpGwxGJi"
}

[EvilBMP]

Ok, in my case it was a custom Confirmation template overwrite in my site_package, that wasn't updated accordingly yet.

[twestner]

Ok, in my case it was a custom Confirmation template overwrite in my site_package, that wasn't updated accordingly yet.

I can confirm this. With original powermail templates I do not get this error.
After updating my custom template everything is fine.

--
powermail 12.5.1 // TYPO3 12.4.33

[mschwemer]

@ceekay73 Can you confirm the findings from the last 2 comments? If yes, I would close the issue.

[ceekay73]

Yes, the issue can be closed. The problem was related to templates being injected by cs_powermail_gdpr Extension, which where probably not updated in the used version.