The System.Web class in the XSP for ASP.NET server 1.1 through 2.0 in Mono does not properly verify local pathnames, which allows remote attackers to (1) read source code by appending a space (%20) to a URI, and (2) read credentials via a request for Web.Config%20.
Conclusion & alert: CVE-2006-6104 is rated High Exploit Risk (67.2/100): CVSS Medium severity, with high exploitation likelihood (EPSS 15.02%, 95th percentile). Core evidence: 4 public exploit reference(s) are indexed (Exploit-DB). 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 |
|---|---|---|---|---|
| 29302 | exploit_db | edb | 2006-12-20 | Exploit-DB ↗ |
| — | nvd_ref | exploit_tag | Exploit-DB ↗ | |
| — | nvd_ref | exploit_tag | 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 | 2026-05-03 | 15.91% | 15.02% | -0.89% |
| 2 | 2026-04-02 | 17.55% | 15.91% | -1.64% |
| 3 | 2025-11-23 | — | 17.55% | — |
Full EPSS history (21 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 | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2006-6104: no source package rows; 0 state rows across 0 repos (none); fixed 0, open 0. | https://security.alpinelinux.org/vuln/CVE-2006-6104 |
debian
|
low | CVE-2006-6104 low priority: Debian including 1 source packages (mono), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2006-6104 |
gentoo
|
low | CVE-2006-6104: 1 GLSA(s) (200701-12), 1 atom(s) (dev-lang/mono); latest impact low. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2006-6104 |
ubuntu
|
medium | CVE-2006-6104 medium priority: Ubuntu including 1 source packages (mono), 4 status rows across 4 suites (dapper, edgy, feisty, upstream): released 3, not-affected 1. | https://ubuntu.com/security/CVE-2006-6104 |