Matt Wright FormMail up to 1.9 Referer Checker HTTP_REFERER authentication spoofing

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.3$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Matt Wright FormMail up to 1.9. The affected element is an unknown function of the component Referer Checker. The manipulation of the argument HTTP_REFERER leads to authentication spoofing. This vulnerability is documented as CVE-2002-2109. There is not any exploit available.

Detailsinfo

A vulnerability was found in Matt Wright FormMail up to 1.9 and classified as critical. This issue affects an unknown code of the component Referer Checker. The manipulation of the argument HTTP_REFERER with an unknown input leads to a authentication spoofing vulnerability. Using CWE to declare the problem leads to CWE-290. This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Matt Wright FormMail 1.9 and earlier allows remote attackers to bypass the HTTP_REFERER check and conduct unauthorized activities via (1) a blank referer, (2) a spoofed referer with a trusted domain/URL after the beginning of the referer, or (3) a spoofed referer with a trusted domain/URL in the beginning (hostname) portion of the referer.

The bug was discovered 01/23/2002. The weakness was released 12/31/2002 as not defined posting (Bugtraq). It is possible to read the advisory at archives.neohapsis.com. The identification of this vulnerability is CVE-2002-2109 since 08/05/2005. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 342 days. During that time the estimated underground price was around $0-$5k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 10476 (FormMail HTTP_Referer Spoofing Vulnerability).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (8012), SecurityFocus (BID 3954†), OSVDB (19762†) and Vulnerability Center (SBV-13477†). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Authentication spoofing
CWE: CWE-290 / CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/23/2002 🔍
01/23/2002 +0 days 🔍
01/23/2002 +0 days 🔍
12/31/2002 +342 days 🔍
12/31/2002 +0 days 🔍
08/05/2005 +948 days 🔍
12/20/2006 +502 days 🔍
08/06/2014 +2786 days 🔍
08/30/2025 +4042 days 🔍

Sourcesinfo

Advisory: archives.neohapsis.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2002-2109 (🔍)
GCVE (CVE): GCVE-0-2002-2109
GCVE (VulDB): GCVE-100-19751
X-Force: 8012
SecurityFocus: 3954 - FormMail HTTP_Referer Spoofing Vulnerability
OSVDB: 19762 - FormMail - HTTP_Referer Spoofing Issue
Vulnerability Center: 13477 - Matt Wright FormMail HTTP_REFERER Spoofing, High

Entryinfo

Created: 08/06/2014 11:42
Updated: 08/30/2025 02:03
Changes: 08/06/2014 11:42 (59), 07/12/2019 11:44 (5), 08/30/2025 02:03 (18)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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