CVE-2026-85630
UnknownSummary
HTML::FormHandler before version 0.410002 for Perl renders field attributes into HTML without escaping using the process_attrs method. Applications with fields or labels where attributes are built from data rather than literals may allow attacker-influenced text in attribute values, potentially overriding field attributes or embedding JavaScript in rendered pages.
Risk Assessment
The risk includes cross-site scripting (XSS) and alteration of form appearance or behavior, which could lead to data theft or session hijacking.
Recommendation
Upgrade HTML::FormHandler to version 0.410002 or later. Ensure all data used to construct attributes is properly escaped.
Other vulnerabilities in HTML::FormHandler
See all- CVE-2026-85485Unknown
HTML::FormHandler before version 0.410002 for Perl renders some error messages into HTML without escaping. The Table form layout and Bootstrap 2 and 3 wrappers splice each error string directly into the surrounding markup. Error messages containing attacker-influenced content such as rejected field values could embed JavaScript in rendered pages.
- CVE-2026-85484Unknown
HTML::FormHandler before version 0.410002 for Perl renders option group labels and radio button labels into HTML without escaping. The Select, RadioGroup, CheckboxGroup and HorizCheckboxGroup widgets render a group label unescaped, and RadioGroup also renders each radio button's own label unescaped. Applications whose option list is built from data may allow attacker-influenced text in a label, potentially overriding options or embedding JavaScript.
- CVE-2026-19872Unknown
HTML::FormHandler before version 0.410000 for Perl allows cross-site scripting via a submitted value rendered unescaped in an error message. The wrappers and renderers that emit a form's errors interpolate the error string straight into HTML with no escaping. The no_match and not_allowed messages splice the submitted value into that string, and a failing type constraint puts the rejected value into the message. A network request submitting markup to such a field can cause script execution in the victim's context.
- CVE-2022-4993Critical
Vulnerability in HTML::FormHandler before version 0.410000 for Perl allows attacker-selected method dispatch and resource exhaustion. This occurs because _apply_actions and add_error use error message text built from request data as a Locale::Maketext bracket notation template, potentially leading to dangerous method calls or memory allocation.
Original NVD description (English source)
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.