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Vulnerability record · CVE-2002-2427 · published 6 February 2009

CVE-2002-2427: Goahead webserver improper authentication vulnerability

Goahead · Goahead Webserver

The security handler in GoAhead WebServer before 2.1.1 allows remote attackers to bypass authentication and obtain access to protected web content via "an extra slash in a URL," a different vulnerability than CVE-2002-1603.

5.0 CVSS 2.0 Medium EPSS 1.3% · top 30.1% CWE-287 · Improper authentication
5.0CVSS 2.0 base score
1.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
16 Jun 2026Last modified by NVD

Description

The security handler in GoAhead WebServer before 2.1.1 allows remote attackers to bypass authentication and obtain access to protected web content via "an extra slash in a URL," a different vulnerability than CVE-2002-1603.

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

Affected products

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

References

LinkTags
http://data.goahead.com/Software/Webserver/2.1.8/release.htm#security-features-can-be-bypassed-by-adding-an-extra-slash- Vendor Advisory
http://www.kb.cert.org/vuls/id/124059 US Government Resource
http://data.goahead.com/Software/Webserver/2.1.8/release.htm#security-features-can-be-bypassed-by-adding-an-extra-slash- Vendor Advisory
http://www.kb.cert.org/vuls/id/124059 US Government Resource

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Related vulnerabilities

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

7.5CVE-2002-2431Goahead webserver vulnerabilityUnspecified vulnerability in GoAhead WebServer before 2.1.4 allows remote attackers to cause "incorrect behavior" via unknown "malicious code," relat…EPSS 1.2%5.0CVE-2009-5111Goahead webserver vulnerabilityGoAhead WebServer allows remote attackers to cause a denial of service (daemon outage) via partial HTTP requests, as demonstrated by Slowloris.EPSS 1.1%5.0CVE-2002-2428Goahead webserver improper input validation vulnerabilitywebs.c in GoAhead WebServer before 2.1.4 allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via an HTTP…EPSS 1.6%5.0CVE-2002-2429Goahead webserver improper input validation vulnerabilitywebs.c in GoAhead WebServer before 2.1.4 allows remote attackers to cause a denial of service (daemon crash) via an HTTP POST request that contains a…EPSS 1.1%5.0CVE-2002-2430Goahead webserver vulnerabilityGoAhead WebServer before 2.1.1 allows remote attackers to cause a denial of service (CPU consumption) by performing a socket disconnect to terminate …EPSS 1.1%5.0CVE-2003-1568Goahead webserver improper input validation vulnerabilityGoAhead WebServer before 2.1.6 allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via an invalid URL, r…EPSS 1.6%5.0CVE-2003-1569Goahead webserver improper input validation vulnerabilityGoAhead WebServer before 2.1.5 on Windows 95, 98, and ME allows remote attackers to cause a denial of service (daemon crash) via an HTTP request with…EPSS 1.1%4.3CVE-2011-4273Goahead webserver cross-site scripting vulnerabilityMultiple cross-site scripting (XSS) vulnerabilities in GoAhead Webserver 2.18 allow remote attackers to inject arbitrary web script or HTML via (1) t…EPSS 4.8%

Source: NIST National Vulnerability Database (record CVE-2002-2427), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.