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CVE-2026-85485— HTML::FormHandler versions before 0.410002 for Perl render some error messages into HTML without escaping

Quick assessment

Affected
CVE-2026-85485
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

以下是该漏洞描述的中文翻译： HTML::FormHandler 0.410002 之前版本的 Perl 库在将部分错误信息渲染到 HTML 时未进行转义处理。 在 Table 表单布局以及 Bootstrap 2 和 3 封装层中，错误字符串会被直接拼接（splice）进周围的标记代码中。在 0.410000 版本中（即修复 CVE-2026-19872 的版本），已对其他布局和封装层中的相应值进行了转义；而 0.410002 版本则将这一转义处理扩展到了上述三种（Table、Bootstrap 2、Bootst

AI Predicted 5.4 Difficulty: Easy

Possible ATT&CK Techniques 1 AI

T1189 · Drive-by Compromise

I. Basic Information for CVE-2026-85485

Vulnerability Information
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Vulnerability Title
HTML::FormHandler versions before 0.410002 for Perl render some error messages into HTML without escaping
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
- - 0 ~ 0.410002 -

II. Public POCs for CVE-2026-85485

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III. Intelligence Information for CVE-2026-85485

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Patches & Fixes for CVE-2026-85485 (1)

IV. Related Vulnerabilities

Same weakness: CWE-79

V. Comments for CVE-2026-85485

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