VULNERABILITY INTELLIGENCE
CVE-2007-1900
CVSS score5 MEDIUM
EPSS probability2.53%
CISA KEVNot currently listed
Published2007-04-10
Last modified2026-06-16
CVSS vectorAV:N/AC:L/Au:N/C:N/I:P/A:N
Description
CRLF injection vulnerability in the FILTER_VALIDATE_EMAIL filter in ext/filter in PHP 5.2.0 and 5.2.1 allows context-dependent attackers to inject arbitrary e-mail headers via an e-mail address with a '\n' character, which causes a regular expression to ignore the subsequent part of the address string.