CVE-2012-1172
The file-upload implementation in rfc1867.c in PHP before 5.4.0 does not properly handle invalid [ (open square bracket) characters in name values, which makes it easier for remote attackers to cause a denial of service (malformed $_FILES indexes) or conduct directory traversal attacks during multi-file uploads by leveraging a script that lacks its own filename restrictions.
Key facts
- CVSS score
- 5.8 (v2.0)
- Severity
- MEDIUM
- CVSS vector
AV:N/AC:M/Au:N/C:N/I:P/A:P- Weakness (CWE)
- CWE-20
- EPSS score
- 6.2% (94th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2012-1202)
- Published
- May 24, 2012
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2012-1202 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.
View on the EU Vulnerability DatabaseAffected products
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
References
- http://isisblogs.poly.edu/2011/08/11/php-not-properly-checking-params/(Exploit)
- http://lists.apple.com/archives/security-announce/2012/Sep/msg00004.html
- http://lists.fedoraproject.org/pipermail/package-announce/2012-May/080037.html
- http://lists.fedoraproject.org/pipermail/package-announce/2012-May/080041.html
- http://lists.fedoraproject.org/pipermail/package-announce/2012-May/080070.html
- http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00007.html
- http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00011.html
- http://marc.info/?l=bugtraq&m=134012830914727&w=2
- http://openwall.com/lists/oss-security/2012/03/13/4
- http://support.apple.com/kb/HT5501
- http://svn.php.net/viewvc/php/php-src/branches/PHP_5_4/main/rfc1867.c?r1=321664&r2=321663&pathrev=321664(Patch)
- http://svn.php.net/viewvc?view=revision&revision=321664
- http://www.debian.org/security/2012/dsa-2465
- http://www.php.net/ChangeLog-5.php#5.4.0
- https://bugs.php.net/bug.php?id=48597(Exploit)
- https://bugs.php.net/bug.php?id=49683
- https://bugs.php.net/bug.php?id=54374(Exploit)
- https://bugs.php.net/bug.php?id=55500
- https://nealpoole.com/blog/2011/10/directory-traversal-via-php-multi-file-uploads/(Exploit)
- https://students.mimuw.edu.pl/~ai292615/php_multipleupload_overwrite.pdf(Exploit)
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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