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Perl Data::MuForm Module Has Unescaped HTML Rendering Vulnerability

Original title: CVE-2026-121632: Data::MuForm versions through 0.05 for Perl render attribute values and option labels into HTML without escaping

oss-security ()1
Read at seclists.org
Part of a story covered by 3 sourcesRothenberg discloses XSS and SQL injection flaws in Perl modulesMerged summary & timeline
AI summary · x-ai/grok-4.7Summaries by Vani AI

Data::MuForm versions through 0.05 render attribute values and option labels into HTML without escaping, risking XSS.

A vulnerability in Perl module Data::MuForm versions through 0.05 causes attribute values and option labels to be rendered into HTML without escaping. This could allow cross-site scripting attacks. The issue was posted on oss-security on November 4. Affected users should review module updates or patches for mitigation.

Key facts
  • Affects Data::MuForm versions through 0.05
  • Renders values into HTML without escaping
  • Potential for cross-site scripting
  • Reported by Robert Rothenberg on oss-security
Security assessment · AI, from the articleNo known exploitation

Impact: Cross-site scripting via unescaped HTML rendering

What to do
  1. 1.Upgrade to fixed version of Data::MuForm
  2. 2.Audit HTML output in affected applications
  3. 3.Implement input escaping where applicable
Analyze CVE-2026-121632 with Vani AIImpact, affected versions, exploitation, mitigations and detection
CVEs
CVE-2026-121632
Tags
perldatamiformxss
Vendors
Perl
Products
Data::MuForm

Vulnerabilities mentioned

All
CVEVulnerabilityCVSSEPSSSignalsPublished
CVE-2026-121632
XSS in Data::MuForm through 0.05
6.1—

From the original article

Posted by Robert Rothenberg on Nov 04 ======================================================================== https://metacpan. org/dist/Data-MuForm VCS Repo: ...

oss-security

seclists.org

Read the full article at oss-security

A short excerpt; the article and its images belong to the publisher. Summary, key facts and assessment above are AI-written from the article and can be wrong.