CVE-2009-4142

The htmlspecialchars function in PHP before 5.2.12 does not properly handle (1) overlong UTF-8 sequences, (2) invalid Shift_JIS sequences, and (3) invalid EUC-JP sequences, which allows remote attackers to conduct cross-site scripting (XSS) attacks by placing a crafted byte sequence before a special character.

Score
CVSS 2.0 4.3 Medium
Status
Modified - secalert@redhat.com
Published
2009-12-21
Last modified
2024-08-07
Weaknesses
CWE-79

Affected products

References