CVE-2009-3559
CVE-2009-3559 is a high-severity vulnerability in Php with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.
Key facts
- Severity: High (CVSS 2.0 base score 7.5)
- EPSS exploit prediction: 3% (84th percentile)
- Actively exploited: Not listed in CISA KEV
- Affected product: Php
- Published:
- Last modified:
Description
main/streams/plain_wrapper.c in PHP 5.3.x before 5.3.1 does not recognize the safe_mode_include_dir directive, which allows context-dependent attackers to have an unknown impact by triggering the failure of PHP scripts that perform include or require operations, as demonstrated by a script that attempts to perform a require_once on a file in a standard library directory. NOTE: a reliable third party reports that this is not a vulnerability, because it results in a more restrictive security policy.
Frequently asked questions
- What is CVE-2009-3559?
- main/streams/plain_wrapper.c in PHP 5.3.x before 5.3.1 does not recognize the safe_mode_include_dir directive, which allows context-dependent attackers to have an unknown impact by triggering the failure of PHP scripts that perform include or require operations, as demonstrated by a script that attempts to perform a require_once on a file in a standard library directory. NOTE: a reliable third party reports that this is not a vulnerability, because it results in a more restrictive security policy.
- How severe is CVE-2009-3559?
- CVE-2009-3559 has a CVSS 2.0 base score of 7.5, rated high severity.
- Is CVE-2009-3559 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2009-3559?
- CVE-2009-3559 affects Php. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2009-3559?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2009-3559 published?
- CVE-2009-3559 was published on 2009-11-23 and last updated on 2026-06-16.
References
- http://bugs.php.net/bug.php?id=50063
- http://lists.apple.com/archives/security-announce/2010//Mar/msg00001.html
- http://news.php.net/php.announce/79
- http://support.apple.com/kb/HT4077
- http://www.mandriva.com/security/advisories?name=MDVSA-2009:302
- http://www.openwall.com/lists/oss-security/2009/11/20/2
- http://www.openwall.com/lists/oss-security/2009/11/20/3
- http://www.openwall.com/lists/oss-security/2009/11/20/5
- http://www.php.net/ChangeLog-5.php
- http://www.php.net/releases/5_3_1.php
Affected products (1)
- cpe:2.3:a:php:php:5.3.0:*:*:*:*:*:*:*
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