Email text color is not "sanitized"

[Wildcat Media]

Affected version

2.3

I won't screenshot the entire message, but I just received this in email. This part of the message was unreadable due to white text on light grey background:



Note that there is also white text on white background at the very bottom of the above screenshot. Here it is, highlighted:



The final code block in this post has text color set to white, along with the "Thank you!" at the end:

Post in thread 'Thread Filter by AddonsLab [Paid]'

Jan 28, 2024

So far so good but started getting this error on advance search

LogicException: Tried to call XF\Extension::resolveExtendedClassToRoot on AL\ThreadFilter\XF\Pub\Controller\XF22\Search, but extendClass was never called on the base class in src/XF/Extension.php at line 302
XF\Extension->resolveExtendedClassToRoot() in src/XF/Mvc/Controller.php at line 31
XF\Mvc\Controller->__construct() in src/XF/Container.php at line 276
XF\Container->createObject() in src/XF/App.php at line 1625
XF\App->XF\{closure}() in src/XF/Container.php at line 234
XF\Container->create() in src/XF/App.php at...

• AddonsLab

• 

While I'm 100,000% opposed to any colored text in a post (this isn't 1995....cue the blinking magneta text), at least it should be sanitized in emails sent out as notifications, using a default text color rather than what appears in the post. All BBCode need not be stripped, but at least any text color altered should be returned to the default color in email.

In essence, I could compose a post in all-white text and it would appear to be blank when received via email.