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Servers and applications

CVE-2005-0453

The buffer_urldecode function in Lighttpd 1.3.7 and earlier does not properly handle control characters, which allows remote attackers to obtain the source code for CGI and FastCGI scripts via a URL with a %00 (null) character after the file extension.

Severity
Medium 5.0
Published
16 Feb 2005
Last changed
16 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
1.7% in the next 30 daysHigher than 77% of CVEs. EPSS by FIRST, 12 Nov 2026
Attack
Over the network · No login needed
Attacker can
Read some data
CVSS vector
AV:N/AC:L/Au:N/C:P/I:N/A:N
Sources
NVD

Affected software

SoftwareAffected versions
lighttpdServers and applications · cpe:a:lighttpd:lighttpd
  • Version 1.3.7

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2005-0453
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2005-0453