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Vulnerability record · CVE-2007-3709 · published 11 July 2007

CVE-2007-3709: Codeigniter vulnerability

Codeigniter · Codeigniter

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.

5.0 CVSS 2.0 Medium EPSS 1.2% · top 33.4%
5.0CVSS 2.0 base score
1.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
8References
16 Jun 2026Last modified by NVD

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.

AV:N/AC:L/Au:N/C:N/I:P/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://lists.grok.org.uk/pipermail/full-disclosure/2007-July/064500.html
http://osvdb.org/39370
http://securityreason.com/securityalert/2877
http://www.securityfocus.com/archive/1/473190/100/0/threaded
http://lists.grok.org.uk/pipermail/full-disclosure/2007-July/064500.html
http://osvdb.org/39370
http://securityreason.com/securityalert/2877
http://www.securityfocus.com/archive/1/473190/100/0/threaded

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Source: NIST National Vulnerability Database (record CVE-2007-3709), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.