What’s Vulnerable › Vulnerabilities

CVE-2026-85630: HTML::FormHandler versions before 0.410002 for Perl render field attributes into HTML without escaping using the process_attrs method

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-08 · updated 2026-09-10
• Weakness: CWE-79

Description

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.

References

• https://github.com/gshank/html-formhandler/commit/a887271e91d755e6486a9f433ae932deb1d2c4a6.patch
• https://metacpan.org/release/ABRAXXA/HTML-FormHandler-0.410002/changes
• http://www.openwall.com/lists/oss-security/2026/09/08/18

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