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.
Conclusion & alert: CVE-2002-2427 is rated Low Risk (38.7/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.30%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2025-10-22 | 0.24% | 0.30% | +0.06% |
| 2 | 2025-08-23 | 0.40% | 0.24% | -0.16% |
| 3 | 2025-03-30 | — | 0.40% | — |
Full EPSS history (9 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| goahead | goahead_webserver | <= 2.1 | cpe:2.3:a:goahead:goahead_webserver:*:*:*:*:*:*:*:* |
| goahead | goahead_webserver | 2.0 | cpe:2.3:a:goahead:goahead_webserver:2.0:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| http://data.goahead.com/Software/Webserver/2.1.8/release.htm#security-features-can-be-bypassed-by-adding-an-extra-slash-in-the-url-bug01518 | Vendor Advisory |
| http://www.kb.cert.org/vuls/id/124059 | US Government Resource |