HTML::FormHandler versions before 0.410002 for Perl render field attributes into HTML without escaping using the process_attrs method.

Any application with fields or field labels where some attributes are built from data rather than literals allows attacker-influenced text in an attribute value that can override the field attributes or embed JavaScript in rendered pages.

For example, the RadioGroup widget uses the process_attrs method via the render_option and wrap_radio methods.

HTML::FormHandler versions before 0.410002 for Perl render field attributes into HTML without escaping using the process_attrs method.

Any application with fields or field labels where some attributes are built from data rather than literals allows attacker-influenced text in an attribute value that can override the field attributes or embed JavaScript in rendered pages.

For example, the RadioGroup widget uses the process_attrs method via the render_option and wrap_radio methods.

perl-HTML-FormHandler-0.410.2-1.1 on GA media

Affected: Ubuntu:16.04:LTS: libhtml-formhandler-perl, Ubuntu:18.04:LTS: libhtml-formhandler-perl, Ubuntu:20.04:LTS: libhtml-formhandler-perl, Ubuntu:22.04:LTS: libhtml-formhandler-perl, Ubuntu:24.04:LTS: libhtml-formhandler-perl, Ubuntu:26.04:LTS: libhtml-formhandler-perl

HTML::FormHandler versions before 0.410002 for Perl render field attributes into HTML without escaping using the process_attrs method. Any application with fields or field labels where some attributes are built from data rather than literals allows attacker-influenced text in an attribute value that can override the field attributes or embed JavaScript in rendered pages. For example, the RadioGroup widget uses the process_attrs method via the render_option and wrap_radio methods.