{"id":"CVE-2007-3709","aliases":["EUVD-2007-3693","GHSA-2m5c-p827-r3fx"],"status":"published","title":"CRLF injection vulnerability in the redirect function in url_helper.php in CodeIgniter 1.5.3...","description":"CRLF injection vulnerability in the redirect function in url_helper.php in CodeIgniter 1.5.3 allows remote attackers to inject arbitrary HTTP headers via CRLF sequences in an unspecified parameter, as demonstrated by a Set-Cookie header.","severity":{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.01186,"percentile":0.68061,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2007-07-11T23:00:00Z","modified":"2026-06-16T22:42:34Z","products":[{"vendor":"codeigniter","product":"codeigniter"}],"references":[{"url":"http://osvdb.org/39370","tags":["vdb-entry","x_refsource_OSVDB","x_transferred"]},{"url":"http://lists.grok.org.uk/pipermail/full-disclosure/2007-July/064500.html","tags":["mailing-list","x_refsource_FULLDISC","x_transferred"]},{"url":"http://www.securityfocus.com/archive/1/473190/100/0/threaded","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"http://securityreason.com/securityalert/2877","tags":["third-party-advisory","x_refsource_SREASON","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2007-3709"},{"url":"https://github.com/advisories/GHSA-2m5c-p827-r3fx"}],"sources":{"cve":[{"id":"CVE-2007-3709","description":"CRLF injection vulnerability in the redirect function in url_helper.php in CodeIgniter 1.5.3 allows remote attackers to inject arbitrary HTTP headers via CRLF sequences in an unspecified parameter, as demonstrated by a Set-Cookie header.","status":"published","published":"2007-07-11T23:00:00Z","modified":"2024-08-07T14:28:51.952Z","updated_at":"2026-11-02T13:32:45.563938Z"}],"euvd":[{"id":"EUVD-2007-3693","description":"CRLF injection vulnerability in the redirect function in url_helper.php in CodeIgniter 1.5.3 allows remote attackers to inject arbitrary HTTP headers via CRLF sequences in an unspecified parameter, as demonstrated by a Set-Cookie header.","status":"published","published":"2007-07-11T23:00:00Z","modified":"2024-08-07T14:28:51Z","updated_at":"2026-11-03T01:16:24.965758Z"}],"ghsa":[{"id":"GHSA-2m5c-p827-r3fx","title":"CRLF injection vulnerability in the redirect function in url_helper.php in CodeIgniter 1.5.3...","description":"CRLF injection vulnerability in the redirect function in url_helper.php in CodeIgniter 1.5.3 allows remote attackers to inject arbitrary HTTP headers via CRLF sequences in an unspecified parameter, as demonstrated by a Set-Cookie header.","status":"published","published":"2022-05-01T18:16:26Z","modified":"2023-01-31T05:04:24Z","updated_at":"2026-11-02T14:48:39.538271Z"}],"nvd":[{"id":"CVE-2007-3709","description":"CRLF injection vulnerability in the redirect function in url_helper.php in CodeIgniter 1.5.3 allows remote attackers to inject arbitrary HTTP headers via CRLF sequences in an unspecified parameter, as demonstrated by a Set-Cookie header.","status":"published","published":"2007-07-11T23:30:00Z","modified":"2026-06-16T22:42:34.31Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:01:17.002124Z"}]}}