diff --git a/wp-includes/default-filters.php b/wp-includes/default-filters.php
index 35f356982c..5b988a9ccb 100644
--- a/wp-includes/default-filters.php
+++ b/wp-includes/default-filters.php
@@ -48,21 +48,17 @@ add_filter('comment_text', 'make_clickable');
 add_filter('comment_text', 'wpautop', 30);
 add_filter('comment_text', 'convert_smilies', 20);
 
-add_filter('comment_text_rss', 'htmlspecialchars');
-
 add_filter('comment_excerpt', 'convert_chars');
-add_filter('the_excerpt_rss', 'convert_chars');
 
 // Places to balance tags on input
 add_filter('content_save_pre', 'balanceTags', 50);
 add_filter('excerpt_save_pre', 'balanceTags', 50);
 add_filter('comment_save_pre', 'balanceTags', 50);
 
+// Misc. title, content, and excerpt filters
 add_filter('the_title', 'convert_chars');
 add_filter('the_title', 'trim');
 
-add_filter('the_title_rss', 'strip_tags');
-
 add_filter('the_content', 'convert_smilies');
 add_filter('the_content', 'convert_chars');
 add_filter('the_content', 'wpautop');
@@ -70,11 +66,23 @@ add_filter('the_content', 'wpautop');
 add_filter('the_excerpt', 'convert_smilies');
 add_filter('the_excerpt', 'convert_chars');
 add_filter('the_excerpt', 'wpautop');
-
 add_filter('get_the_excerpt', 'wp_trim_excerpt');
 
 add_filter('sanitize_title', 'sanitize_title_with_dashes');
 
+// RSS filters
+add_filter('the_title_rss', 'strip_tags');
+add_filter('the_title_rss', 'ent2ncr', 8);
+add_filter('the_content_rss', 'ent2ncr', 8);
+add_filter('the_excerpt_rss', 'convert_chars');
+add_filter('the_excerpt_rss', 'ent2ncr', 8);
+add_filter('comment_author_rss', 'ent2ncr', 8);
+add_filter('comment_text_rss', 'htmlspecialchars');
+add_filter('comment_text_rss', 'ent2ncr', 8);
+add_filter('bloginfo_rss', 'ent2ncr', 8);
+add_filter('the_author', 'ent2ncr', 8);
+
+// Actions
 add_action('publish_post', 'generic_ping');
 
 ?>
\ No newline at end of file
diff --git a/wp-includes/functions-formatting.php b/wp-includes/functions-formatting.php
index e38f2d6b01..fa1bf89e58 100644
--- a/wp-includes/functions-formatting.php
+++ b/wp-includes/functions-formatting.php
@@ -722,4 +722,271 @@ function wp_trim_excerpt($text) { // Fakes an excerpt if needed
 	return $text;
 }
 
+function ent2ncr($text) {
+	$to_ncr = array(
+			'"' => '"',
+			'&' => '&',
+			'⁄' => '/',
+			'<' => '<',
+			'>' => '>',
+			' ' => ' ',
+			'¡' => '¡',
+			'¢' => '¢',
+			'£' => '£',
+			'¤' => '¤',
+			'¥' => '¥',
+			'\|' => '¦',
+			'¦' => '¦',
+			'&brkbar;' => '¦',
+			'§' => '§',
+			'¨' => '¨',
+			'¨' => '¨',
+			'©' => '©',
+			'ª' => 'ª',
+			'«' => '«',
+			'¬' => '¬',
+			'­' => '­',
+			'®' => '®',
+			'¯' => '¯',
+			'&hibar;' => '¯',
+			'°' => '°',
+			'±' => '±',
+			'²' => '²',
+			'³' => '³',
+			'´' => '´',
+			'µ' => 'µ',
+			'¶' => '¶',
+			'·' => '·',
+			'¸' => '¸',
+			'¹' => '¹',
+			'º' => 'º',
+			'»' => '»',
+			'¼' => '¼',
+			'½' => '½',
+			'¾' => '¾',
+			'¿' => '¿',
+			'À' => 'À',
+			'Á' => 'Á',
+			'Â' => 'Â',
+			'Ã' => 'Ã',
+			'Ä' => 'Ä',
+			'Å' => 'Å',
+			'Æ' => 'Æ',
+			'Ç' => 'Ç',
+			'È' => 'È',
+			'É' => 'É',
+			'Ê' => 'Ê',
+			'Ë' => 'Ë',
+			'Ì' => 'Ì',
+			'Í' => 'Í',
+			'Î' => 'Î',
+			'Ï' => 'Ï',
+			'Ð' => 'Ð',
+			'Ñ' => 'Ñ',
+			'Ò' => 'Ò',
+			'Ó' => 'Ó',
+			'Ô' => 'Ô',
+			'Õ' => 'Õ',
+			'Ö' => 'Ö',
+			'×' => '×',
+			'Ø' => 'Ø',
+			'Ù' => 'Ù',
+			'Ú' => 'Ú',
+			'Û' => 'Û',
+			'Ü' => 'Ü',
+			'Ý' => 'Ý',
+			'Þ' => 'Þ',
+			'ß' => 'ß',
+			'à' => 'à',
+			'á' => 'á',
+			'â' => 'â',
+			'ã' => 'ã',
+			'ä' => 'ä',
+			'å' => 'å',
+			'æ' => 'æ',
+			'ç' => 'ç',
+			'è' => 'è',
+			'é' => 'é',
+			'ê' => 'ê',
+			'ë' => 'ë',
+			'ì' => 'ì',
+			'í' => 'í',
+			'î' => 'î',
+			'ï' => 'ï',
+			'ð' => 'ð',
+			'ñ' => 'ñ',
+			'ò' => 'ò',
+			'ó' => 'ó',
+			'ô' => 'ô',
+			'õ' => 'õ',
+			'ö' => 'ö',
+			'÷' => '÷',
+			'ø' => 'ø',
+			'ù' => 'ù',
+			'ú' => 'ú',
+			'û' => 'û',
+			'ü' => 'ü',
+			'ý' => 'ý',
+			'þ' => 'þ',
+			'ÿ' => 'ÿ',
+			'Œ' => 'Œ',
+			'œ' => 'œ',
+			'Š' => 'Š',
+			'š' => 'š',
+			'Ÿ' => 'Ÿ',
+			'ƒ' => 'ƒ',
+			'ˆ' => 'ˆ',
+			'˜' => '˜',
+			'Α' => 'Α',
+			'Β' => 'Β',
+			'Γ' => 'Γ',
+			'Δ' => 'Δ',
+			'Ε' => 'Ε',
+			'Ζ' => 'Ζ',
+			'Η' => 'Η',
+			'Θ' => 'Θ',
+			'Ι' => 'Ι',
+			'Κ' => 'Κ',
+			'Λ' => 'Λ',
+			'Μ' => 'Μ',
+			'Ν' => 'Ν',
+			'Ξ' => 'Ξ',
+			'Ο' => 'Ο',
+			'Π' => 'Π',
+			'Ρ' => 'Ρ',
+			'Σ' => 'Σ',
+			'Τ' => 'Τ',
+			'Υ' => 'Υ',
+			'Φ' => 'Φ',
+			'Χ' => 'Χ',
+			'Ψ' => 'Ψ',
+			'Ω' => 'Ω',
+			'α' => 'α',
+			'β' => 'β',
+			'γ' => 'γ',
+			'δ' => 'δ',
+			'ε' => 'ε',
+			'ζ' => 'ζ',
+			'η' => 'η',
+			'θ' => 'θ',
+			'ι' => 'ι',
+			'κ' => 'κ',
+			'λ' => 'λ',
+			'μ' => 'μ',
+			'ν' => 'ν',
+			'ξ' => 'ξ',
+			'ο' => 'ο',
+			'π' => 'π',
+			'ρ' => 'ρ',
+			'ς' => 'ς',
+			'σ' => 'σ',
+			'τ' => 'τ',
+			'υ' => 'υ',
+			'φ' => 'φ',
+			'χ' => 'χ',
+			'ψ' => 'ψ',
+			'ω' => 'ω',
+			'ϑ' => 'ϑ',
+			'ϒ' => 'ϒ',
+			'ϖ' => 'ϖ',
+			' ' => ' ',
+			' ' => ' ',
+			' ' => ' ',
+			'‌' => '‌',
+			'‍' => '‍',
+			'‎' => '‎',
+			'‏' => '‏',
+			'–' => '–',
+			'—' => '—',
+			'‘' => '‘',
+			'’' => '’',
+			'‚' => '‚',
+			'“' => '“',
+			'”' => '”',
+			'„' => '„',
+			'†' => '†',
+			'‡' => '‡',
+			'•' => '•',
+			'…' => '…',
+			'‰' => '‰',
+			'′' => '′',
+			'″' => '″',
+			'‹' => '‹',
+			'›' => '›',
+			'‾' => '‾',
+			'⁄' => '⁄',
+			'€' => '€',
+			'ℑ' => 'ℑ',
+			'℘' => '℘',
+			'ℜ' => 'ℜ',
+			'™' => '™',
+			'ℵ' => 'ℵ',
+			'↵' => '↵',
+			'⇐' => '⇐',
+			'⇑' => '⇑',
+			'⇒' => '⇒',
+			'⇓' => '⇓',
+			'⇔' => '⇔',
+			'∀' => '∀',
+			'∂' => '∂',
+			'∃' => '∃',
+			'∅' => '∅',
+			'∇' => '∇',
+			'∈' => '∈',
+			'∉' => '∉',
+			'∋' => '∋',
+			'∏' => '∏',
+			'∑' => '∑',
+			'−' => '−',
+			'∗' => '∗',
+			'√' => '√',
+			'∝' => '∝',
+			'∞' => '∞',
+			'∠' => '∠',
+			'∧' => '∧',
+			'∨' => '∨',
+			'∩' => '∩',
+			'∪' => '∪',
+			'∫' => '∫',
+			'∴' => '∴',
+			'∼' => '∼',
+			'≅' => '≅',
+			'≈' => '≈',
+			'≠' => '≠',
+			'≡' => '≡',
+			'≤' => '≤',
+			'≥' => '≥',
+			'⊂' => '⊂',
+			'⊃' => '⊃',
+			'⊄' => '⊄',
+			'⊆' => '⊆',
+			'⊇' => '⊇',
+			'⊕' => '⊕',
+			'⊗' => '⊗',
+			'⊥' => '⊥',
+			'⋅' => '⋅',
+			'⌈' => '⌈',
+			'⌉' => '⌉',
+			'⌊' => '⌊',
+			'⌋' => '⌋',
+			'⟨' => '〈',
+			'⟩' => '〉',
+			'←' => '←',
+			'↑' => '↑',
+			'→' => '→',
+			'↓' => '↓',
+			'↔' => '↔',
+			'◊' => '◊',
+			'♠' => '♠',
+			'♣' => '♣',
+			'♥' => '♥',
+			'♦' => '♦'
+	);
+
+	foreach ($to_ncr as $entity => $ncr) {
+		$text = str_replace($entity, $ncr, $text);
+	}
+	return $text;
+}
+
 ?>