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Servers and applications

CVE-2002-0121

PHP 4.0 through 4.1.1 stores session IDs in temporary files whose name contains the session ID, which allows local users to hijack web connections.

Severity
Low 2.1
Published
25 Mar 2002
Last changed
16 Jun 2026
Added to UpHeron
14 Oct 2026
Exploit chance
1.2% in the next 30 daysHigher than 68% of CVEs. EPSS by FIRST, 12 Nov 2026
Attack
Needs local access · No login needed
Attacker can
Read some data
CVSS vector
AV:L/AC:L/Au:N/C:P/I:N/A:N
Sources
NVD

Affected software

SoftwareAffected versions
PHPServers and applications · cpe:a:php:php
  • Version 4.0.4
  • Version 4.0.5
  • Version 4.0.6
  • Version 4.1.0
  • Version 4.1.2

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2002-0121
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2002-0121