UpHeron
All vulnerabilities

Servers and applications

CVE-2006-4542

Webmin before 1.296 and Usermin before 1.226 do not properly handle a URL with a null ("%00") character, which allows remote attackers to conduct cross-site scripting (XSS), read CGI program source code, list directories, and possibly execute programs.

Severity
Medium 6.8
Published
5 Sept 2006
Last changed
16 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
3.2% in the next 30 daysHigher than 88% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
Cross-site scripting (CWE-79)
Attack
Over the network · No login needed
Attacker can
Read some data · Change some data · Slow it down
CVSS vector
AV:N/AC:M/Au:N/C:P/I:P/A:P
Sources
NVD

Affected software

SoftwareAffected versions
WebminServers and applications · cpe:a:webmin:webmin
  • Version 1.2.80
  • Version 1.2.70
  • Version 1.2.60
  • Version 1.2.50
All 59 release lines
  • Every version up to 1.2.90
  • Version 0.1
  • Version 0.2
  • Version 0.3
  • Version 0.4
  • Version 0.5
  • Version 0.6
  • Version 0.7
  • Version 0.21
  • Version 0.22
  • Version 0.31
  • Version 0.41
  • Version 0.42
  • Version 0.51
  • Version 0.76
  • Version 0.77
  • Version 0.78
  • Version 0.79
  • Version 0.80
  • Version 0.83
  • Version 0.84
  • Version 0.85
  • Version 0.88
  • Version 0.90
  • Version 0.91
  • Version 0.92
  • Version 0.92.1
  • Version 0.93
  • Version 0.94
  • Version 0.95
  • Version 0.96
  • Version 0.97
  • Version 0.98
  • Version 0.99
  • Version 1.0.00
  • Version 1.0.10
  • Version 1.0.20
  • Version 1.0.30
  • Version 1.0.40
  • Version 1.0.50
  • Version 1.0.51
  • Version 1.0.60
  • Version 1.0.70
  • Version 1.0.80
  • Version 1.0.90
  • Version 1.1.00
  • Version 1.1.10
  • Version 1.1.20
  • Version 1.1.21
  • Version 1.1.30
  • Version 1.1.40
  • Version 1.1.50
  • Version 1.2.20
  • Version 1.2.30
  • Version 1.2.40
  • Version 1.2.50
  • Version 1.2.60
  • Version 1.2.70
  • Version 1.2.80

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2006-4542
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2006-4542