diff --git a/public/language/en-GB/search.json b/public/language/en-GB/search.json
index 0a9201e00e..b404ae1fc8 100644
--- a/public/language/en-GB/search.json
+++ b/public/language/en-GB/search.json
@@ -7,6 +7,7 @@
 	"in-titles": "In titles",
 	"in-titles-posts": "In titles and posts",
 	"in-posts": "In posts",
+	"in-bookmarks": "In bookmarks",
 	"in-categories": "In categories",
 	"in-users": "In users",
 	"in-tags": "In tags",
diff --git a/public/src/client/search.js b/public/src/client/search.js
index 4ca01b80f9..5bf52a1ef9 100644
--- a/public/src/client/search.js
+++ b/public/src/client/search.js
@@ -119,7 +119,7 @@ define('forum/search', [
 			in: $('#search-in').val(),
 		};
 		searchData.term = $('#search-input').val();
-		if (searchData.in === 'posts' || searchData.in === 'titlesposts' || searchData.in === 'titles') {
+		if (['posts', 'titlesposts', 'titles', 'bookmarks'].includes(searchData.in)) {
 			searchData.matchWords = form.find('#match-words-filter').val();
 			searchData.by = selectedUsers.length ? selectedUsers.map(u => u.username) : undefined;
 			searchData.categories = selectedCids.length ? selectedCids : undefined;
@@ -143,7 +143,7 @@ define('forum/search', [
 	}
 
 	function updateFormItemVisiblity(searchIn) {
-		const hideTitlePostFilters = !searchIn.includes('posts') && !searchIn.includes('titles');
+		const hideTitlePostFilters = !['posts', 'titles', 'bookmarks'].some(token => searchIn.includes(token));
 		$('.post-search-item').toggleClass('hidden', hideTitlePostFilters);
 	}
 
@@ -252,6 +252,7 @@ define('forum/search', [
 
 	function categoryFilterDropdown(_selectedCids) {
 		ajaxify.data.allCategoriesUrl = '';
+		selectedCids = _selectedCids || [];
 		const dropdownEl = $('[component="category/filter"]');
 		categoryFilter.init(dropdownEl, {
 			selectedCids: _selectedCids,
@@ -290,6 +291,7 @@ define('forum/search', [
 	}
 
 	function userFilterDropdown(el, _selectedUsers) {
+		selectedUsers = _selectedUsers || [];
 		userFilter.init(el, {
 			selectedUsers: _selectedUsers,
 			template: 'partials/search-filters',
diff --git a/src/controllers/search.js b/src/controllers/search.js
index a12c433edd..8b21189e7d 100644
--- a/src/controllers/search.js
+++ b/src/controllers/search.js
@@ -36,7 +36,7 @@ searchController.search = async function (req, res, next) {
 	let allowed = (req.query.in === 'users' && userPrivileges['search:users']) ||
 					(req.query.in === 'tags' && userPrivileges['search:tags']) ||
 					(req.query.in === 'categories') ||
-					(['titles', 'titlesposts', 'posts'].includes(req.query.in) && userPrivileges['search:content']);
+					(['titles', 'titlesposts', 'posts', 'bookmarks'].includes(req.query.in) && userPrivileges['search:content']);
 	({ allowed } = await plugins.hooks.fire('filter:search.isAllowed', {
 		uid: req.uid,
 		query: req.query,
diff --git a/src/posts/user.js b/src/posts/user.js
index 4d9ab4d21e..850ed4c613 100644
--- a/src/posts/user.js
+++ b/src/posts/user.js
@@ -261,4 +261,21 @@ module.exports = function (Posts) {
 			}
 		});
 	}
+
+	Posts.filterPidsByUid = async function (pids, uids) {
+		if (!uids) {
+			return pids;
+		}
+
+		if (!Array.isArray(uids) || uids.length === 1) {
+			return await filterPidsBySingleUid(pids, uids);
+		}
+		const pidsArr = await Promise.all(uids.map(uid => Posts.filterPidsByUid(pids, uid)));
+		return _.union(...pidsArr);
+	};
+
+	async function filterPidsBySingleUid(pids, uid) {
+		const isMembers = await db.isSortedSetMembers(`uid:${parseInt(uid, 10)}:posts`, pids);
+		return pids.filter((pid, index) => pid && isMembers[index]);
+	}
 };
diff --git a/src/search.js b/src/search.js
index cbd4e4f40c..1ab7063398 100644
--- a/src/search.js
+++ b/src/search.js
@@ -3,6 +3,7 @@
 const _ = require('lodash');
 
 const db = require('./database');
+const batch = require('./batch');
 const posts = require('./posts');
 const topics = require('./topics');
 const categories = require('./categories');
@@ -18,7 +19,7 @@ search.search = async function (data) {
 	data.sortBy = data.sortBy || 'relevance';
 
 	let result;
-	if (data.searchIn === 'posts' || data.searchIn === 'titles' || data.searchIn === 'titlesposts') {
+	if (['posts', 'titles', 'titlesposts', 'bookmarks'].includes(data.searchIn)) {
 		result = await searchInContent(data);
 	} else if (data.searchIn === 'users') {
 		result = await user.search(data);
@@ -68,6 +69,8 @@ async function searchInContent(data) {
 		const tid = inTopic[1];
 		const cleanedTerm = data.query.replace(inTopic[0], '');
 		pids = await topics.search(tid, cleanedTerm);
+	} else if (data.searchIn === 'bookmarks') {
+		pids = await searchInBookmarks(data, searchCids, searchUids);
 	} else {
 		[pids, tids] = await Promise.all([
 			doSearch('post', ['posts', 'titlesposts']),
@@ -115,8 +118,42 @@ async function searchInContent(data) {
 	return Object.assign(returnData, metadata);
 }
 
+async function searchInBookmarks(data, searchCids, searchUids) {
+	const { uid, query, matchWords } = data;
+	const allPids = [];
+	await batch.processSortedSet(`uid:${uid}:bookmarks`, async (pids) => {
+		if (Array.isArray(searchCids) && searchCids.length) {
+			pids = await posts.filterPidsByCid(pids, searchCids);
+		}
+		if (Array.isArray(searchUids) && searchUids.length) {
+			pids = await posts.filterPidsByUid(pids, searchUids);
+		}
+		if (query) {
+			const tokens = String(query).split(' ');
+			const postData = await db.getObjectsFields(pids.map(pid => `post:${pid}`), ['content']);
+			pids = pids.filter((pid, i) => {
+				const content = String(postData[i].content);
+				if (matchWords === 'any') {
+					return tokens.some(t => content.includes(t));
+				}
+				return tokens.every(t => content.includes(t));
+			});
+		}
+		allPids.push(...pids);
+	}, {
+		batch: 500,
+	});
+
+	return allPids;
+}
+
 async function filterAndSort(pids, data) {
-	if (data.sortBy === 'relevance' && !data.replies && !data.timeRange && !data.hasTags && !plugins.hooks.hasListeners('filter:search.filterAndSort')) {
+	if (data.sortBy === 'relevance' &&
+		!data.replies &&
+		!data.timeRange &&
+		!data.hasTags &&
+		data.searchIn !== 'bookmarks' &&
+		!plugins.hooks.hasListeners('filter:search.filterAndSort')) {
 		return pids;
 	}
 	let postsData = await getMatchedPosts(pids, data);