VULNERABILITY INTELLIGENCE
CVE-2009-5016
CVSS score6.8 MEDIUM
EPSS probability2.65%
CISA KEVNot currently listed
Published2010-11-12
Last modified2026-06-16
CVSS vectorAV:N/AC:M/Au:N/C:P/I:P/A:P
Description
Integer overflow in the xml_utf8_decode function in ext/xml/xml.c in PHP before 5.2.11 makes it easier for remote attackers to bypass cross-site scripting (XSS) and SQL injection protection mechanisms via a crafted string that uses overlong UTF-8 encoding, a different vulnerability than CVE-2010-3870.