CVE-2026-120648

perl-CGI: perl-CGI: HTML injection via unescaped comment delimiter

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Severity

Moderate

Red Hat Product Security

6.1

CVSS 3.1

Review impact separately from score.

Published · November 4, 2026

Updated · November 4, 2026

Description

A flaw was found in perl-CGI. When generating HTML comments, input is placed directly into comment tags without proper escaping. A remote attacker could exploit this flaw by submitting input that prematurely terminates the comment block, enabling the injection of arbitrary HTML or client-side scripts into the rendered web page.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 6.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CWE-79 · Improper Neutralization of Input During Web Page Generation