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Vulnerability record · CVE-2009-1777 · published 22 May 2009

CVE-2009-1777: Matt wright formmail improper input validation vulnerability

Matt Wright · Formmail

CRLF injection vulnerability in FormMail.pl in Matt Wright FormMail 1.92, and possibly earlier, allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via the redirect parameter.

5.0 CVSS 2.0 Medium EPSS 2.0% · top 20.4% CWE-20 · Improper input validation
5.0CVSS 2.0 base score
2.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
8References, 2 tagged exploit
16 Jun 2026Last modified by NVD

Description

CRLF injection vulnerability in FormMail.pl in Matt Wright FormMail 1.92, and possibly earlier, allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via the redirect parameter.

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://secunia.com/advisories/35068 Vendor Advisory
http://www.securityfocus.com/archive/1/503446/100/0/threaded
http://www.securityfocus.com/bid/34929
http://www.ush.it/team/ush/hack-formmail_192/adv.txt Exploit
http://secunia.com/advisories/35068 Vendor Advisory
http://www.securityfocus.com/archive/1/503446/100/0/threaded
http://www.securityfocus.com/bid/34929
http://www.ush.it/team/ush/hack-formmail_192/adv.txt Exploit

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

7.5CVE-2002-2109Matt wright formmail vulnerabilityMatt Wright FormMail 1.9 and earlier allows remote attackers to bypass the HTTP_REFERER check and conduct unauthorized activities via (1) a blank ref…EPSS 2.7%7.5CVE-2001-0357Matt wright formmail vulnerabilityFormMail.pl in FormMail 1.6 and earlier allows a remote attacker to send anonymous email (spam) by modifying the recipient and message parameters.EPSS 1.4%7.5CVE-1999-0172Matt wright formmail vulnerabilityFormMail CGI program allows remote execution of commands.EPSS 3.4%5.0CVE-2002-1771Matt wright formmail vulnerabilityMatt Wright FormMail 1.9 and earlier allows remote attackers to send spam or anonymous e-mail by injecting a newline character followed by CC:, BCC:,…EPSS 1.4%5.0CVE-2000-0411Matt wright formmail vulnerabilityMatt Wright's FormMail CGI script allows remote attackers to obtain environmental variables via the env_report parameter.EPSS 7.5%5.0CVE-1999-0173Matt wright formmail vulnerabilityFormMail CGI program can be used by web servers other than the host server that the program resides on.EPSS 4.9%4.3CVE-2009-1776Matt wright formmail cross-site scripting vulnerabilityMultiple cross-site scripting (XSS) vulnerabilities in FormMail.pl in Matt Wright FormMail 1.92, and possibly earlier, allow remote attackers to inje…EPSS 1.5%9.5CVE-2026-88771Citrix netscaler application delivery controller improper input validation vulnerabilityImproper input validation vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway. This issue affects ADC: before 14.1-73.37, before 13.1-…KEV

Source: NIST National Vulnerability Database (record CVE-2009-1777), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.