vulnwire
4.3med

CVE-2009-41422 exploits

The htmlspecialchars function in PHP before 5.2.12 does not properly handle (1) overlong UTF-8 sequences, (2) invalid Shift_JIS sequences,…

Published 16 y ago · modified 4 mo ago · JSON

CVSS
4.3
v2.0 · NVD
CISA KEV
No
not known exploited
EPSS
6.5%
percentile 94%
Public exploits
2
Exploit-DB

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.

Exploit prediction (EPSS)

6.50% probability of exploitation in the next 30 days, higher than 94% of all scored CVEs.

Exploits and detections

  • EDB-33415 PHP 5.2.11 - 'htmlspecialCharacters()' Malformed Multibyte Character Cross-Site Scripting (2) · remote · 2009-12-17
  • EDB-33414 PHP 5.2.11 - 'htmlspecialCharacters()' Malformed Multibyte Character Cross-Site Scripting (1) · remote · 2009-12-17

CVSS scores

Assigned byVersionScoreVector
NVD2.04.3AV:N/AC:M/Au:N/C:N/I:P/A:N

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation
Technology feeds
PHP (RSS, critical only)

References

  • securityfocus.com /bid/37389 · vdb-entry, x_refsource_BID, x_transferred
  • php.net /releases/5_2_12.php · x_refsource_CONFIRM, x_transferred
  • bugs.php.net /bug.php?id=49785 · x_refsource_CONFIRM, x_transferred
  • secunia.com /advisories/40262 · third-party-advisory, x_refsource_SECUNIA, x_transferred
  • marc.info /?l=bugtraq&m=127680701405735&w=2 · vendor-advisory, x_refsource_HP, x_transferred
  • securitytracker.com /id?1023372 · vdb-entry, x_refsource_SECTRACK, x_transferred
  • secunia.com /advisories/37821 · third-party-advisory, x_refsource_SECUNIA, x_transferred
  • secunia.com /advisories/38648 · third-party-advisory, x_refsource_SECUNIA, x_transferred
  • lists.apple.com /archives/security-announce/2010//Mar/msg00001.html · vendor-advisory, x_refsource_APPLE, x_transferred
  • php.net /ChangeLog-5.php · x_refsource_CONFIRM, x_transferred
  • oval.cisecurity.org /repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7085 · vdb-entry, signature, x_refsource_OVAL, x_transferred
  • oval.cisecurity.org /repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10005 · vdb-entry, signature, x_refsource_OVAL, x_transferred
  • support.apple.com /kb/HT4077 · x_refsource_CONFIRM, x_transferred
  • vupen.com /english/advisories/2009/3593 · vdb-entry, x_refsource_VUPEN, x_transferred
  • debian.org /security/2010/dsa-2001 · vendor-advisory, x_refsource_DEBIAN, x_transferred

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.