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-rw-r--r--system/core/Security.php6
1 files changed, 5 insertions, 1 deletions
diff --git a/system/core/Security.php b/system/core/Security.php
index 75c994ae1..beb7f56e0 100644
--- a/system/core/Security.php
+++ b/system/core/Security.php
@@ -359,7 +359,11 @@ class CI_Security {
*
* Note: Use rawurldecode() so it does not remove plus signs
*/
- $str = rawurldecode($str);
+ do
+ {
+ $str = rawurldecode($str);
+ }
+ while (preg_match('/%[0-9a-f]{2,}/i', $str));
/*
* Convert character entities to ASCII