CVE-2026-120636None▾ SunlitCGI versions before 5.00 for Perl allow open redirects and script injection via URLs built from REQUEST_URI in url and start_form. url(-absolute=>1), url(-relative=>1) and the default start_form action are built from the client-supplied…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0 · exploitation 0
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Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
0.2%
CGI versions before 5.00 for Perl allow open redirects and script injection via URLs built from REQUEST_URI in url and start_form.
url(-absolute=>1), url(-relative=>1) and the default start_form action are built from the client-supplied REQUEST_URI without validation. The result can be protocol-relative (//evil.example), absolute-form (http://evil.example/) or contain backslashes, and url(-relative=>1) can return a javascript: URL. Links and form posts built from these URLs can go to another host.
CGI < 5.00Upgrade to CGI 5.00 or later.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-120648NoneCGI versions before 5.00 for Perl allow HTML injection via text containing --> in comment
CVE-2026-120638NoneCGI versions before 5.00 for Perl allow open redirects via HTML entity decoding of the URL after application validation in redirect
CVE-2026-120643NoneCGI versions from 4.62 before 5.00 for Perl allow cross-site scripting via a raw apostrophe in URLs returned by url and self_url
CVE-2026-120633NoneCGI versions before 5.00 for Perl trust the client X-Forwarded-Host header in url, self_url, virtual_host and virtual_port
CVE-2026-120650NoneCGI versions before 5.00 for Perl allow memory, CPU and disk exhaustion via missing or unenforced request size, parameter and upload limits
CVE-2026-120641NoneCGI versions before 5.00 for Perl return upload filenames with any client-supplied path, including ../ and Windows paths