/usr/share/perl5/HTML/Widget/Element/ is in libhtml-widget-perl 1.11-5.
This file is owned by root:root, with mode 0o755.
..
/usr/share/perl5/HTML/Widget/Element/Block.pm
/usr/share/perl5/HTML/Widget/Element/Button.pm
/usr/share/perl5/HTML/Widget/Element/Checkbox.pm
/usr/share/perl5/HTML/Widget/Element/Fieldset.pm
/usr/share/perl5/HTML/Widget/Element/Hidden.pm
/usr/share/perl5/HTML/Widget/Element/NullContainer.pm
/usr/share/perl5/HTML/Widget/Element/Password.pm
/usr/share/perl5/HTML/Widget/Element/Radio.pm
/usr/share/perl5/HTML/Widget/Element/RadioGroup.pm
/usr/share/perl5/HTML/Widget/Element/Reset.pm
/usr/share/perl5/HTML/Widget/Element/Select.pm
/usr/share/perl5/HTML/Widget/Element/Span.pm
/usr/share/perl5/HTML/Widget/Element/Submit.pm
/usr/share/perl5/HTML/Widget/Element/Textarea.pm
/usr/share/perl5/HTML/Widget/Element/Textfield.pm
/usr/share/perl5/HTML/Widget/Element/Upload.pm