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CVE-2026-78190

WebDyne versions from 2.014 before 3.022 for Perl reflect request parameters unescaped into form field values, allowing cross-site scripting

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 3.022
None on Exploit-DB, Metasploit or GitHub

Summary

WebDyne, a Perl framework for building web applications, is affected by a cross-site scripting flaw in its form field tags. An attacker can craft a link that injects malicious scripts into pages, which could run in a victim's browser and compromise their session or data.

Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.

Read the original description

WebDyne versions from 2.014 before 3.022 for Perl reflect request parameters unescaped into form field values, allowing cross-site scripting. The textfield, password_field and filefield tags fill their value attribute from the request parameter of the same name. WEBDYNE_CGI_AUTOESCAPE, which controls escaping of these values, defaults to off. From 2.022, WebDyne::HTML::Tiny also replaced its entity_encode method with one that returns its input unchanged, so enabling WEBDYNE_CGI_AUTOESCAPE has no effect. A remote attacker can inject script into any page using these tags through a crafted link.

Timeline

  1. CVE published
  2. First seen by cve.now

Affected versions

  • WebDyne

    From 2.014 · fixed in 3.022

References 1

metacpan.org