diff options
| -rw-r--r-- | system/core/Security.php | 5 | ||||
| -rw-r--r-- | user_guide_src/source/changelog.rst | 1 |
2 files changed, 4 insertions, 2 deletions
diff --git a/system/core/Security.php b/system/core/Security.php index 4c01da2b8..95957a3d8 100644 --- a/system/core/Security.php +++ b/system/core/Security.php @@ -837,14 +837,15 @@ class CI_Security { * Add a semicolon if missing. We do this to enable * the conversion of entities to ASCII later. */ - $str = preg_replace('#(&\#?[0-9a-z]{2,})([\x00-\x20])*;?#i', '\\1;\\2', $str); + $str = preg_replace('/(&#\d{2,4})(?![0-9;])/', '$1;', $str); + $str = preg_replace('/(&[a-z]{2,})(?![a-z;])/i', '$1;', $str); /* * Validate UTF16 two byte encoding (x00) * * Just as above, adds a semicolon if missing. */ - $str = preg_replace('#(&\#x?)([0-9A-F]+);?#i', '\\1\\2;', $str); + $str = preg_replace('/(�*[0-9a-f]{2,5})(?![0-9a-f;])/i', '$1;', $str); /* * Un-Protect GET variables in URLs diff --git a/user_guide_src/source/changelog.rst b/user_guide_src/source/changelog.rst index 4d93091f1..c68258e1c 100644 --- a/user_guide_src/source/changelog.rst +++ b/user_guide_src/source/changelog.rst @@ -681,6 +681,7 @@ Bug fixes for 3.0 - Fixed a bug where :doc:`User Agent Library <libraries/user_agent>` methods ``accept_charset()`` and ``accept_lang()`` didn't properly parse HTTP headers that contain spaces. - Fixed a bug where *default_controller* was called instad of triggering a 404 error if the current route is in a controller directory. - Fixed a bug (#2737) - :doc:`XML-RPC Library <libraries/xmlrpc>` used objects as array keys, which triggered E_NOTICE messages. +- Fixed a bug (#2729) - ``CI_Securty::_validate_entities()`` used overly-intrusive ``preg_replace()`` patterns that produced false-positives. Version 2.1.4 ============= |