Description
ext/filter in PHP 5.2.0, when FILTER_SANITIZE_STRING is used with the FILTER_FLAG_STRIP_LOW flag, does not properly strip HTML tags, which allows remote attackers to conduct cross-site scripting (XSS) attacks via HTML with a '<' character followed by certain whitespace characters, which passes one filter but is collapsed into a valid tag, as demonstrated using %0b.
Metrics
CVSS 2.0 4.3/10
AV:N/AC:M/Au:N/C:N/I:P/A:NAffected software
No affected versions have been published.
Timeline
- Published
- Mar 14, 2007
- Last modified
- Jun 16, 2026
- NVD status
- Modified