CVE-2026-120648

CGI versions before 5.00 for Perl allow HTML injection via text containing --> in comment

State: Published
Severity: Not scored
Published: Nov 3, 2026
Updated: Nov 3, 2026
Reserved: Nov 2, 2026

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Description

CGI versions before 5.00 for Perl allow HTML injection via text containing --> in comment.

Arguments are placed between  without escaping, so text containing --> closes the comment early.

An application that passes request data to comment can be made to inject HTML into the page.

Scores

The record has no CVSS score.

Weaknesses

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Affected Products

Product	Versions
CGI	before 5.00Affected

References

https://metacpan.org/release/LEEJO/CGI-4.72/source/lib/CGI.pmtechnical-description
https://metacpan.org/release/LEEJO/CGI-5.00/changesrelease-notes
https://github.com/leejo/CGI.pm/commit/6a17eb84703d84bca86b0079f5870ca9c921ffd4.patchpatch

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