CVE-2011-2202

CVE-2011-2202 is a medium-severity vulnerability in Php with a CVSS 2.0 base score of 6.4. Its EPSS exploit-prediction score of 19% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-264.

Key facts

• Severity: Medium (CVSS 2.0 base score 6.4)
• EPSS exploit prediction: 19% (97th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-264
• Affected product: Php
• Published: 2011-06-16
• Last modified: 2026-06-16

Description

The rfc1867_post_handler function in main/rfc1867.c in PHP before 5.3.7 does not properly restrict filenames in multipart/form-data POST requests, which allows remote attackers to conduct absolute path traversal attacks, and possibly create or overwrite arbitrary files, via a crafted upload request, related to a "file path injection vulnerability."

Frequently asked questions

What is CVE-2011-2202?

The rfc1867_post_handler function in main/rfc1867.c in PHP before 5.3.7 does not properly restrict filenames in multipart/form-data POST requests, which allows remote attackers to conduct absolute path traversal attacks, and possibly create or overwrite arbitrary files, via a crafted upload request, related to a "file path injection vulnerability."

How severe is CVE-2011-2202?

CVE-2011-2202 has a CVSS 2.0 base score of 6.4, rated medium severity.

Is CVE-2011-2202 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 19% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-2202?

CVE-2011-2202 primarily affects Php. In total, 72 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-2202?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2011-2202 published?

CVE-2011-2202 was published on 2011-06-16 and last updated on 2026-06-16.

References

• http://bugs.php.net/bug.php?id=54939
• http://lists.apple.com/archives/security-announce/2012/Feb/msg00000.html
• http://marc.info/?l=bugtraq&m=133469208622507&w=2
• http://openwall.com/lists/oss-security/2011/06/12/5
• http://openwall.com/lists/oss-security/2011/06/13/15
• http://pastebin.com/1edSuSVN
• http://rhn.redhat.com/errata/RHSA-2012-0071.html
• http://secunia.com/advisories/44874
• http://securitytracker.com/id?1025659
• http://support.apple.com/kb/HT5130
• http://svn.php.net/viewvc/php/php-src/branches/PHP_5_3/NEWS?view=markup&pathrev=312103
• http://svn.php.net/viewvc/php/php-src/branches/PHP_5_3/main/rfc1867.c?r1=312103&r2=312102&pathrev=312103
• http://svn.php.net/viewvc?view=revision&revision=312103
• http://www.debian.org/security/2011/dsa-2266
• http://www.mandriva.com/security/advisories?name=MDVSA-2011:165
• http://www.php.net/ChangeLog-5.php#5.3.7
• http://www.php.net/archive/2011.php#id2011-08-18-1
• http://www.redhat.com/support/errata/RHSA-2011-1423.html
• http://www.securityfocus.com/bid/48259
• http://www.securityfocus.com/bid/49241
• https://exchange.xforce.ibmcloud.com/vulnerabilities/67999

Affected products (72)

• cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:1.0:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:2.0:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:2.0b10:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:3.0:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:3.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:3.0.2:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:3.0.3:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:3.0.4:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:3.0.5:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:3.0.6:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:3.0.7:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:3.0.8:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:3.0.9:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:3.0.10:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:3.0.11:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:3.0.12:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:3.0.13:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:3.0.14:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:3.0.15:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:3.0.16:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:3.0.17:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:3.0.18:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:4.0:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:4.0:beta_4_patch1:*:*:*:*:*:*
• cpe:2.3:a:php:php:4.0:beta1:*:*:*:*:*:*
• cpe:2.3:a:php:php:4.0:beta2:*:*:*:*:*:*
• cpe:2.3:a:php:php:4.0:beta3:*:*:*:*:*:*
• cpe:2.3:a:php:php:4.0:beta4:*:*:*:*:*:*
• cpe:2.3:a:php:php:4.0.0:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:4.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:4.0.2:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:4.0.3:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:4.0.4:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:4.0.5:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:4.0.6:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:4.0.7:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:4.1.0:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:4.1.1:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:4.1.2:*:*:*:*:*:*:*

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Threat intelligence

Threat-intel indicators referencing this CVE:

• 221.161.235.168 (ipv4-addr)
• 187.141.71.166 (ipv4-addr)
• 103.20.122.54 (ipv4-addr)
• 82.199.197.245 (ipv4-addr)
• 58.221.244.34 (ipv4-addr)
• 222.99.52.202 (ipv4-addr)
• 220.88.220.59 (ipv4-addr)
• 211.253.10.61 (ipv4-addr)