{"id":"CVE-2026-120643","title":"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","summary":"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.\n\nBoth pass the URL through URI's canonical method, which leaves an apostrophe in the path raw and decodes t…","severity":"none","cwe":["CWE-79"],"product":"CGI","affected":["CGI >= 4.62 < 5.00"],"published":"2026-11-03","updated":"2026-11-03","sourceUpdated":"2026-11-03T23:40:48.770Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-120643","references":[{"url":"https://metacpan.org/release/LEEJO/CGI-4.72/source/lib/CGI.pm"},{"url":"https://metacpan.org/release/LEEJO/CGI-5.00/changes"},{"url":"https://github.com/leejo/CGI.pm/commit/851430be84c4d0f350681814e1d7718b9959f2c2.patch"}],"tags":["cve.org"],"epss":0.00208,"epssPercentile":0.11059,"ingestedAt":"2026-11-05T20:33:06.616Z","slug":"CVE-2026-120643","body":"## Overview\n\nCGI 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.\n\nBoth 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.\n\nAn application that places the URL in a single-quoted HTML attribute or JavaScript string is open to cross-site scripting.\n\n## Affected\n\n- `CGI >= 4.62 < 5.00`\n\n## Remediation\n\nUpgrade to CGI 5.00 or later.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}