bsguest.cgi guestbook script allows remote attackers to execute arbitrary commands via shell metacharacters in the email address.
Conclusion & alert: CVE-2001-0099 is rated High Exploit Risk (91.2/100): CVSS Critical severity, with high exploitation likelihood (EPSS 18.80%, 95th percentile). Core evidence: 2 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +2.97% over the last day, indicating growing attacker interest. Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| 20524 | exploit_db | edb | 2000-12-20 | Exploit-DB ↗ |
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
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 | 2025-12-09 | 15.83% | 18.80% | +2.97% |
| 2 | 2025-08-15 | 15.43% | 15.83% | +0.40% |
| 3 | 2025-03-30 | — | 15.43% | — |
Full EPSS history (10 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 10.0 | 2.0 | HIGH |
|
10.0 | 10.0 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| brian_stanback | bsguest.cgi | — | cpe:2.3:a:brian_stanback:bsguest.cgi:*:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| http://archives.neohapsis.com/archives/bugtraq/2000-12/0390.html | Exploit Patch Vendor Advisory |
| http://www.stanback.net/ | Patch |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/5796 |