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.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published: 2009-12-21T16:00:00

Updated: 2024-08-07T06:54:09.694Z

Reserved: 2009-12-01T00:00:00

Link: CVE-2009-4142

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2009-12-21T16:30:00.343

Modified: 2018-10-30T16:26:21.043

Link: CVE-2009-4142

cve-icon Redhat

Severity : Moderate

Publid Date: 2009-10-06T00:00:00Z

Links: CVE-2009-4142 - Bugzilla