CVE-2026-120643None▾ SunlitCGI 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. Both pass the URL through URI's canonical method, which leaves an apostrophe in the path raw and decodes t…
▾ 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 from 4.62 before 5.00 for Perl allow cross-site scripting via a raw apostrophe in URLs returned by url and self_url.
Both pass the URL through URI's canonical method, which leaves an apostrophe in the path raw and decodes the %27 that query parameter escaping produces, so an apostrophe in the request path or a parameter appears raw in the result.
An application that places the URL in a single-quoted HTML attribute or JavaScript string is open to cross-site scripting.
CGI >= 4.62 < 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-2026-120636NoneCGI versions before 5.00 for Perl allow open redirects and script injection via URLs built from REQUEST_URI in url and start_form
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
CVE-2026-120639NoneCGI versions before 5.00 for Perl allow HTTP header injection via entity decoding after the newline check in header and unchecked values in multipart_start and do_push
CVE-2026-120640NoneCGI versions before 5.00 for Perl allow the POSTDATA, PUTDATA, PATCHDATA and XForms:Model parameters to be set from the query string or form fields