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Fencer Vulns
medium 5.0

CVE-2006-6104 json

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 at…

published 2006-12-21 19 y ago modified 2026-06-16 4 mo ago also EUVD-2006-6087

cvss
5.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
5.2%
EPSS 5.2% chance of exploitation in 30 days, percentile 92%
public exploits
1
Exploit-DB

Summary

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.

Patch / fix

  • mono Debian 14, Debian 13, Debian 12 1.2.2.1-1

debian advisories DEBIAN-CVE-2006-6104

Timeline

  1. First public exploit (EDB-29302)
  2. Published

Exploit prediction

5.25% chance of exploitation in the next 30 days, higher than 92% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-29302 Mono XSP 1.x/2.0 - Source Code Information Disclosure remote, 2006-12-20
  • securityfocus.com http://www.securityfocus.com/bid/21687 referenced PoC, tagged "exploit" by a source, unverified
  • secunia.com http://secunia.com/advisories/23432 referenced PoC, tagged "exploit" by a source, unverified
  • eazel.es http://www.eazel.es/advisory007-mono-xsp-source-disclosure-vulnerability.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:P/I:N/A:N

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.