MyBB Community Forums

If forum1 has attachment permissions and attachments are enabled, and a member of a usergroup with attachment permissions edits a post with or without attachments, no warning is thrown. However, if forum2 has attachment permissions denied, a warning is thrown.

<error>
<dateline>1737788169</dateline>
<datetime>2025-01-25 06:56:09 UTC -0700</datetime>
<script>editpost.php</script>
<line>195</line>
<type>2</type>
<friendly_type>Warning</friendly_type>
<message>Undefined array key "attachments"</message>
<back_trace>#0  errorHandler->error() called at [/inc/class_error.php:153]
#1  errorHandler->error_callback() called at [/editpost.php:195]
</back_trace>
</error>

Find at the end of line 195,

&& $_FILES['attachments'])))

and replace it with

&& isset($_FILES['attachments']))))