Index: wp-includes/kses.php
===================================================================
--- wp-includes/kses.php	(revision 22221)
+++ wp-includes/kses.php	(working copy)
@@ -974,7 +974,7 @@
 /**
  * Strips slashes from in front of quotes.
  *
- * This function changes the character sequence \" to just ". It leaves all
+ * This function changes the character sequence \" or \' to just " or '. It leaves all
  * other slashes alone. It's really weird, but the quoting from
  * preg_replace(//e) seems to require this.
  *
@@ -983,8 +983,11 @@
  * @param string $string String to strip slashes
  * @return string Fixed string with quoted slashes
  */
-function wp_kses_stripslashes($string) {
-	return preg_replace('%\\\\"%', '"', $string);
+function wp_kses_stripslashes( $string ) {
+	$string = preg_replace( '%\\\\"%', '"', $string );
+	$string = preg_replace( "%\\\\'%", "'", $string );
+	
+	return $string;
 }
 
 /**