---
id: CVE-2026-85485
title: >-
  HTML::FormHandler versions before 0.410002 for Perl render some error messages
  into HTML without escaping.


  The Table form layout and the Bootstrap 2 and 3 wrappers splice each error
  string straight into the surrounding markup
summary: >-
  HTML::FormHandler versions before 0.410002 for Perl render some error messages
  into HTML without escaping.


  The Table form layout and the Bootstrap 2 and 3 wrappers splice each error
  string straight into the surrounding markup. Version 0…
severity: medium
cvss: 6.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
product: HTML-FormHandler
affected:
  - HTML-FormHandler < 0.410002
published: '2026-09-08'
updated: '2026-09-10'
sourceUpdated: '2026-09-10T18:18:09.707'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-85485'
references:
  - url: >-
      https://github.com/gshank/html-formhandler/commit/2ea9e138dbfe231e317c13936abe6583217c807f.patch
    label: 9b29abf9-4ab0-4765-b253-1875cd9b441e
  - url: 'https://metacpan.org/release/ABRAXXA/HTML-FormHandler-0.410002/changes'
    label: 9b29abf9-4ab0-4765-b253-1875cd9b441e
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-85485.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-85485'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-85485'
tags:
  - nvd
  - cve.org
  - csaf
  - vex
  - red-hat
  - score-dispute
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-10T17:48:48.457630Z'
epss: 0.00207
epssPercentile: 0.1108
ingestedAt: '2026-09-08T21:11:12.320Z'
vendor: Red Hat
scores:
  nvd: 6.1
  vendor: 8.1
---

## Overview

HTML::FormHandler versions before 0.410002 for Perl render some error messages into HTML without escaping.

The Table form layout and the Bootstrap 2 and 3 wrappers splice each error string straight into the surrounding markup. Version 0.410000, the fix for CVE-2026-19872, escaped the equivalent values in the other layouts and wrappers, and 0.410002 extended that to these three.

Error messages that contain attacker-influenced content such as rejected field values could embed JavaScript in rendered pages.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Vendor advisories

- **Red Hat VEX** · updated 2026-09-15 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-85485.json)