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Fencer Intel
critical 10.0

CVE-2004-0542 in the critical feed json

PHP before 4.3.7 on Win32 platforms does not properly filter all shell metacharacters, which allows local or remote attackers to execute ar…

published 22y ago modified 4mo ago also EUVD-2004-0541

cvss
10.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
31.1%
EPSS 31.1% chance of exploitation in 30 days, percentile 98%
public exploits
0
none known

Summary

PHP before 4.3.7 on Win32 platforms does not properly filter all shell metacharacters, which allows local or remote attackers to execute arbitrary code, overwrite files, and access internal environment variables via (1) the "%", "|", or ">" characters to the escapeshellcmd function, or (2) the "%" character to the escapeshellarg function.

Patch / fix

  • php php 4.3.7

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Exploit prediction

31.11% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-14).

CVSS scores

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

Classification

Technology feeds

References

Sources

Fencer Intel 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.