CPANSA-HTML-FormHandler-2026-85484: HTML-FormHandler vulnerability
| Publisher | giterlizzi | Document category | csaf_security_advisory |
|---|---|---|---|
| Initial release date | 2026-09-08T00:00:00 | Engine | CSAF Perl Toolkit 0.26 |
| Current release date | 2026-09-08T00:00:00 | Build Date | |
| Current version | 1 | Status | final |
| CVSS v3.1 Base Score | 6.1 | Severity | Medium |
| Original language | Language | en | |
| Also referred to | |||
Vulnerability Description
HTML::FormHandler versions before 0.410002 for Perl render option group labels and radio button labels into HTML without escaping.
The Select, RadioGroup, CheckboxGroup and HorizCheckboxGroup widgets render a group label unescaped, Select into a label attribute and the other three into element content. RadioGroup also renders each radio button's own label unescaped.
Any application whose option list is built from data rather than literals, using options_from, an options_fieldname method, or the DBIC model, allows attacker-influenced text in a label that can override the options or embed JavaScript in rendered pages.
Vulnerabilities
CVE-2026-85484
Vulnerability DescriptionHTML::FormHandler versions before 0.410002 for Perl render option group labels and radio button labels into HTML without escaping.
The Select, RadioGroup, CheckboxGroup and HorizCheckboxGroup widgets render a group label unescaped, Select into a label attribute and the other three into element content. RadioGroup also renders each radio button's own label unescaped.
Any application whose option list is built from data rather than literals, using options_from, an options_fieldname method, or the DBIC model, allows attacker-influenced text in a label that can override the options or embed JavaScript in rendered pages.
| Weakness | CWE-79 : Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') |
|---|
Product status
Known affected
| Product | Score | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| HTML-FormHandler less than 0.410002 |
|
Fixed
- HTML-FormHandler greater than or equal 0.410002
giterlizzi
Namespace: https://github.com/giterlizzi/
gdt@cpan.org
References
- CPANSA-HTML-FormHandler-2026-85484 JSON self
https://raw.githubusercontent.com/giterlizzi/perl-CPANSA-CSAF/develop/csaf/white/2026/cpansa-html-formhandler-2026-85484.json - https://github.com/gshank/html-formhandler/commit/49b562e0fed5146fc1a372c5fa8a879876b8841d.patch external
https://github.com/gshank/html-formhandler/commit/49b562e0fed5146fc1a372c5fa8a879876b8841d.patch - https://metacpan.org/release/ABRAXXA/HTML-FormHandler-0.410002/changes external
https://metacpan.org/release/ABRAXXA/HTML-FormHandler-0.410002/changes - http://www.openwall.com/lists/oss-security/2026/09/08/16 external
http://www.openwall.com/lists/oss-security/2026/09/08/16 - CVE-2026-85484 (NVD) external
https://nvd.nist.gov/vuln/detail/CVE-2026-85484
Revision history
| Version | Date of the revision | Summary of the revision |
|---|---|---|
| 1 | Tue Sep 8 00:00:00 2026 | First release |
Sharing rules
TLP:WHITE
For the TLP version see: https://www.first.org/tlp/