CVEvulnerability

CVE-2009-4142

4.3 MEDIUM Published 2009-12-21 Modified 2026-06-16 Official page ↗
Status
Modified
Published
2009-12-21
Last modified
2026-06-16
Assigner
[email protected]
CVSS 2.0 ([email protected])
4.3 MEDIUM — AV:N/AC:M/Au:N/C:N/I:P/A:N
Weaknesses
CWE-79

Description

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.

Affected configurations

• php php (<= 5.2.11) • php php 1.0 • php php 2.0 • php php 2.0b10 • php php 3.0 • php php 3.0.1 • php php 3.0.2 • php php 3.0.3 • php php 3.0.4 • php php 3.0.5 • php php 3.0.6 • php php 3.0.7 • php php 3.0.8 • php php 3.0.9 • php php 3.0.10 • php php 3.0.11 • php php 3.0.12 • php php 3.0.13 • php php 3.0.14 • php php 3.0.15 • php php 3.0.16 • php php 3.0.17 • php php 3.0.18 • php php 4 • php php 4.0 • php php 4.0.0 • php php 4.0.1 • php php 4.0.2 • php php 4.0.3 • php php 4.0.4 • php php 4.0.5 • php php 4.0.6 • php php 4.0.7 • php php 4.1.0 • php php 4.1.1 • php php 4.1.2 • php php 4.2 • php php 4.2.0 • php php 4.2.1 • php php 4.2.2 • php php 4.2.3 • php php 4.3.0 • php php 4.3.1 • php php 4.3.2 • php php 4.3.3 • php php 4.3.4 • php php 4.3.5 • php php 4.3.6 • php php 4.3.7 • php php 4.3.8 • php php 4.3.9 • php php 4.3.10 • php php 4.3.11 • php php 4.4.0 • php php 4.4.1 • php php 4.4.2 • php php 4.4.3 • php php 4.4.4 • php php 4.4.5 • php php 4.4.6 … and 27 more

Related

Weakness · CWE (1)

  • CWE-79 Improper Neutralization of Input During Web Page Generation weakness

References