CVE-2009-3558

MediumCVSS 6.8/10Last modified Jun 16, 2026

Description

The posix_mkfifo function in ext/posix/posix.c in PHP before 5.2.12 and 5.3.x before 5.3.1 allows context-dependent attackers to bypass open_basedir restrictions, and create FIFO files, via the pathname and mode arguments, as demonstrated by creating a .htaccess file.

Metrics

CVSS 2.0 6.8/10AV:N/AC:M/Au:N/C:P/I:P/A:P

Weakness enumeration

CWE-264

Affected software

No affected versions have been published.

Timeline

Published: Nov 23, 2009
Last modified: Jun 16, 2026
NVD status: Modified

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