The vulnerability of the PHP interpreter allows attackers to read arbitrary files or write to them.

The vulnerability of the PHP interpreter lies in the lack of checks for the sequence “%00” in the path name. Exploiting this vulnerability allows an attacker to read arbitrary files or write to them using specially crafted input data for an application that calls the DOMDocument save method or th...

CVE-2015-4598: Improper Input Validation

PHP before 5.4.42, 5.5.x before 5.5.26, and 5.6.x before 5.6.10 does not ensure that pathnames lack %00 sequences, which might allow remote attackers to read or write to arbitrary files via crafted input to an application that calls 1 a DOMDocument save method or 2 the GD imagepsloadfont function...