critical · CVSS v3 9.8

CVE-2026-120647

CGI versions before 5.00 for Perl allow Content-Disposition parameter injection via unescaped double quotes in the heade…

Description

CGI versions before 5.00 for Perl allow Content-Disposition parameter injection via unescaped double quotes in the header attachment filename. header(-attachment => $name) writes $name into the quoted filename parameter of Content-Disposition without escaping double quotes. An application that passes request data as the attachment name can be made to send a second filename parameter, changing the name the response is saved under.

Scores

Severity
critical
CVSS v2
7.5
CVSS v3
9.8
CVSS v4
—
EPSS
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