Joomla! com_mailto 1.5.x through 1.5.13 has an automated mail timeout bypass.
[
{
"product": "Joomla!",
"vendor": "Joomla!",
"versions": [
{
"status": "affected",
"version": "All 1.5.x prior to and including 1.5.13"
}
]
}
]