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Fencer Vulns
critical 10.0

CVE-2006-6259 json

Multiple directory traversal vulnerabilities in (a) class/functions.php and (b) class/m_bro.php in AlternC 0.9.5 and earlier allow remote a…

published 2006-12-04 19 y ago modified 2026-06-16 4 mo ago also EUVD-2006-6242

cvss
10.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.0%
EPSS 4.0% chance of exploitation in 30 days, percentile 90%
public exploits
0
none known

Summary

Multiple directory traversal vulnerabilities in (a) class/functions.php and (b) class/m_bro.php in AlternC 0.9.5 and earlier allow remote attackers to (1) create arbitrary files and directories via a .. (dot dot) in the "create name" field and (2) read arbitrary files via a .. (dot dot) in the "web root" field when configuring a subdomain.

Patch / fix

Exploit prediction

4.05% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • securityfocus.com http://www.securityfocus.com/bid/21355 referenced PoC, tagged "exploit" by a source, unverified
  • ground418.org http://www.ground418.org/exploits/read.php?file=06-alternC-095.txt referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

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.