{"id":"CVE-2021-47157","aliases":["EUVD-2021-33805","GHSA-3r58-xjch-5xjp"],"status":"published","title":"The Kossy module before 0.60 for Perl allows JSON hijacking because of X-Requested-With mishandling.","description":"The Kossy module before 0.60 for Perl allows JSON hijacking because of X-Requested-With mishandling.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-10","score":0.00413,"percentile":0.35898,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-346"],"published":"2024-03-18T00:00:00Z","modified":"2026-10-20T10:55:11Z","products":[{"vendor":"kossy","product":"kossy"}],"references":[{"url":"https://github.com/kazeburo/Kossy/pull/16","tags":["x_transferred","fix"]},{"url":"https://metacpan.org/dist/Kossy/changes","tags":["x_transferred","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-47157"},{"url":"https://github.com/advisories/GHSA-3r58-xjch-5xjp"}],"sources":{"cve":[{"id":"CVE-2021-47157","description":"The Kossy module before 0.60 for Perl allows JSON hijacking because of X-Requested-With mishandling.","status":"published","published":"2024-03-18T00:00:00Z","modified":"2024-11-25T20:58:01.266Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"adp"}],"cwes":["CWE-346"],"updated_at":"2026-11-02T14:32:56.689433Z"}],"euvd":[{"id":"EUVD-2021-33805","description":"The Kossy module before 0.60 for Perl allows JSON hijacking because of X-Requested-With mishandling.","status":"published","published":"2024-03-18T00:00:00Z","modified":"2024-11-25T20:58:01Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-03T00:04:48.414867Z"}],"ghsa":[{"id":"GHSA-3r58-xjch-5xjp","title":"The Kossy module before 0.60 for Perl allows JSON hijacking because of X-Requested-With mishandling.","description":"The Kossy module before 0.60 for Perl allows JSON hijacking because of X-Requested-With mishandling.","status":"published","published":"2024-03-18T06:30:51Z","modified":"2024-11-25T21:31:51Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-346"],"updated_at":"2026-11-02T14:58:56.988817Z"}],"nvd":[{"id":"CVE-2021-47157","description":"The Kossy module before 0.60 for Perl allows JSON hijacking because of X-Requested-With mishandling.","status":"published","published":"2024-03-18T05:15:06.317Z","modified":"2026-06-17T04:16:43.723Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-346"],"updated_at":"2026-11-02T14:07:08.163458Z"}],"osv":[{"id":"CVE-2021-47157","description":"The Kossy module before 0.60 for Perl allows JSON hijacking because of X-Requested-With mishandling.","status":"published","published":"2024-03-18T05:15:06.317Z","modified":"2026-10-20T10:55:11.780822138Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:44:22.470367Z"}]}}