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PHP CVEs

Vulnerabilities in the PHP language itself, and which PHP versions they affect.

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CVE-2009-4142

MEDIUM 4.3 CVSS 2.0
Published
December 21, 2009
Last modified
June 16, 2026
NVD status
Modified
Reported by
secalert@redhat.com
Weakness
CWE-79
CVSS vector
AV:N/AC:M/Au:N/C:N/I:P/A:N

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 products and versions

  • PHP — Up to and including 5.2.11
  • PHP versions 1.0, 2.0, 2.0b10, 3.0, 3.0.1, 3.0.2, 3.0.3, 3.0.4, 3.0.5, 3.0.6, 3.0.7, 3.0.8, 3.0.9, 3.0.10, 3.0.11, 3.0.12, 3.0.13, 3.0.14, 3.0.15, 3.0.16, 3.0.17, 3.0.18, 4, 4.0, 4.0.0, 4.0.1, 4.0.1patch1, 4.0.1patch2, 4.0.2, 4.0.3, 4.0.3patch1, 4.0.4, 4.0.4patch1, 4.0.5, 4.0.6, 4.0.7, 4.0.7rc1, 4.0.7rc2, 4.0.7rc3, 4.0.7rc4, 4.0beta1, 4.0beta2, 4.0beta3, 4.0beta4, 4.0beta_4_patch1, 4.0rc1, 4.0rc2, 4.1.0, 4.1.1, 4.1.2, 4.2, 4.2.0, 4.2.1, 4.2.2, 4.2.3, 4.3.0, 4.3.1, 4.3.2, 4.3.3, 4.3.4, 4.3.5, 4.3.6, 4.3.7, 4.3.8, 4.3.9, 4.3.10, 4.3.11, 4.4.0, 4.4.1, 4.4.2, 4.4.3, 4.4.4, 4.4.5, 4.4.6, 4.4.7, 4.4.8, 4.4.9, 5, 5.0.0, 5.0.0beta1, 5.0.0beta2, 5.0.0beta3, 5.0.0beta4, 5.0.0rc1, 5.0.0rc2, 5.0.0rc3, 5.0.1, 5.0.2, 5.0.3, 5.0.4, 5.0.5, 5.0rc1, 5.0rc2, 5.0rc3, 5.1.0, 5.1.1, 5.1.3, 5.1.4, 5.1.5, 5.1.6, 5.2.0, 5.2.1, 5.2.2, 5.2.3, 5.2.4, 5.2.5, 5.2.6, 5.2.8, 5.2.9, 5.2.10

References