Description
The sapi_header_op function in main/SAPI.c in PHP before 5.3.11 and 5.4.x before 5.4.0RC2 does not check for %0D sequences (aka carriage return characters), which allows remote attackers to bypass an HTTP response-splitting protection mechanism via a crafted URL, related to improper interaction between the PHP header function and certain browsers, as demonstrated by Internet Explorer and Google Chrome.
Remediation
References
Related Vulnerabilities
Java Unspesificed Vulnerability (CVE-2018-3157)
WordPress Cross-Site Request Forgery (CSRF) Vulnerability (CVE-2016-6635)
WordPress 5.2.x Multiple Vulnerabilities (5.2 - 5.2.2)
MySQL CVE-2016-0658 Vulnerability (CVE-2016-0658)
WordPress Plugin WP Support Plus Responsive Ticket System Privilege Escalation (7.1.4)