diff --git a/h5p/classes/form/editcontent_form.php b/h5p/classes/form/editcontent_form.php
new file mode 100644
index 00000000000..f9a1dca1993
--- /dev/null
+++ b/h5p/classes/form/editcontent_form.php
@@ -0,0 +1,83 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
+
+namespace core_h5p\form;
+
+use core_h5p\editor;
+
+/**
+ * Form to edit an existing H5P content.
+ *
+ * @package core_h5p
+ * @copyright 2020 Victor Deniz <victor@moodle.com>
+ * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class editcontent_form extends \moodleform {
+
+ /** @var editor H5P editor object */
+ private $editor;
+
+ /**
+ * The form definition.
+ */
+ public function definition() {
+
+ $mform = $this->_form;
+ $id = $this->_customdata['id'] ?? null;
+ $contenturl = $this->_customdata['contenturl'] ?? null;
+ $returnurl = $this->_customdata['returnurl'] ?? null;
+
+ $editor = new editor();
+
+ if ($id) {
+ $mform->addElement('hidden', 'id', $id);
+ $mform->setType('id', PARAM_INT);
+
+ $editor->set_content($id);
+ }
+
+ if ($contenturl) {
+ $mform->addElement('hidden', 'url', $contenturl);
+ $mform->setType('url', PARAM_LOCALURL);
+ }
+
+ if ($returnurl) {
+ $mform->addElement('hidden', 'returnurl', $returnurl);
+ $mform->setType('returnurl', PARAM_LOCALURL);
+ }
+
+ $this->editor = $editor;
+ $mformid = 'h5peditor';
+ $mform->setAttributes(array('id' => $mformid) + $mform->getAttributes());
+
+ $this->add_action_buttons();
+
+ $editor->add_editor_to_form($mform);
+
+ $this->add_action_buttons();
+ }
+
+ /**
+ * Updates an H5P content.
+ *
+ * @param \stdClass $data Object with all the H5P data.
+ *
+ * @return void
+ */
+ public function save_h5p(\stdClass $data): void {
+ $this->editor->save_content($data);
+ }
+}
diff --git a/h5p/edit.php b/h5p/edit.php
new file mode 100644
index 00000000000..a524967736e
--- /dev/null
+++ b/h5p/edit.php
@@ -0,0 +1,114 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Open the editor to modify an H5P content from a given H5P URL.
+ *
+ * @package core_h5p
+ * @copyright 2021 Sara Arjona <sara@moodle.com>
+ * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+require_once(__DIR__ . '/../config.php');
+require_once("$CFG->libdir/formslib.php");
+require_once("$CFG->libdir/filestorage/file_storage.php");
+
+require_login(null, false);
+
+$contenturl = required_param('url', PARAM_LOCALURL);
+$returnurl = optional_param('returnurl', null, PARAM_LOCALURL);
+
+// If no returnurl is defined, use local_referer.
+if (empty($returnurl)) {
+ $returnurl = get_local_referer(false);
+ if (empty($returnurl)) {
+ // If local referer is empty, returnurl will be set to default site page.
+ $returnurl = new \moodle_url('/');
+ }
+}
+
+$contentid = null;
+$isreferenced = false;
+$context = \context_system::instance();
+if (!empty($contenturl)) {
+ list($originalfile, $h5p, $file) = \core_h5p\api::get_original_content_from_pluginfile_url($contenturl);
+ $isreferenced = ($file !== false);
+ if ($originalfile) {
+ // Check if the user can edit the content behind the given URL.
+ if (\core_h5p\api::can_edit_content($originalfile)) {
+ if (!$h5p) {
+ // This H5P file hasn't been deployed yet, so it should be saved to create the entry into the H5P DB.
+ \core_h5p\local\library\autoloader::register();
+ $factory = new \core_h5p\factory();
+ $config = new \stdClass();
+ $onlyupdatelibs = !\core_h5p\helper::can_update_library($originalfile);
+ $contentid = \core_h5p\helper::save_h5p($factory, $originalfile, $config, $onlyupdatelibs, false);
+ } else {
+ // The H5P content exists. Update the contentid value.
+ $contentid = $h5p->id;
+ }
+ }
+ if ($file) {
+ list($context, $course, $cm) = get_context_info_array($file->get_contextid());
+ if ($course) {
+ $context = \context_course::instance($course->id);
+ }
+ } else {
+ list($context, $course, $cm) = get_context_info_array($originalfile->get_contextid());
+ if ($course) {
+ $context = \context_course::instance($course->id);
+ }
+ }
+ }
+}
+
+if (empty($contentid)) {
+ throw new \moodle_exception('error:emptycontentid', 'core_h5p', $returnurl);
+}
+
+$pagetitle = get_string('h5peditor', 'core_h5p');
+$url = new \moodle_url("/h5p/edit.php");
+
+$PAGE->set_context($context);
+$PAGE->set_url($url);
+$PAGE->set_title($pagetitle);
+$PAGE->set_heading($pagetitle);
+
+$values = [
+ 'id' => $contentid,
+ 'contenturl' => $contenturl,
+ 'returnurl' => $returnurl,
+];
+
+$form = new \core_h5p\form\editcontent_form(null, $values);
+if ($form->is_cancelled()) {
+ redirect($returnurl);
+} else if ($data = $form->get_data()) {
+ $form->save_h5p($data);
+ if (!empty($returnurl)) {
+ redirect($returnurl);
+ }
+}
+
+echo $OUTPUT->header();
+
+if ($isreferenced) {
+ echo $OUTPUT->notification(get_string('contentinuse', 'core_h5p'), 'info');
+}
+
+$form->display();
+
+echo $OUTPUT->footer();
diff --git a/h5p/upgrade.txt b/h5p/upgrade.txt
index 4e7fbf614de..03828711b38 100644
--- a/h5p/upgrade.txt
+++ b/h5p/upgrade.txt
@@ -3,6 +3,7 @@ information provided here is intended especially for developers.
=== 4.0 ===
* Added new methods to api: get_original_content_from_pluginfile_url and can_edit_content.
+* Added edit.php and editcontent_form class, for modifying H5P content given an H5P identifier (from the h5p table).
=== 3.11 ===
* Added $skipcapcheck parameter to H5P constructor, api::create_content_from_pluginfile_url() and
diff --git a/lang/en/h5p.php b/lang/en/h5p.php
index 73c67156e05..84a0fefda11 100644
--- a/lang/en/h5p.php
+++ b/lang/en/h5p.php
@@ -59,6 +59,7 @@ $string['connectionLost'] = 'Connection lost. Results will be stored and sent wh
$string['connectionReestablished'] = 'Connection reestablished.';
$string['contentCopied'] = 'Content is copied to the clipboard';
$string['contentchanged'] = 'This content has changed since you last used it.';
+$string['contentinuse'] = 'This content may be in use in other places.';
$string['contenttype'] = 'Content type';
$string['copyright'] = 'Rights of use';
$string['copyrightinfo'] = 'Copyright information';
@@ -78,6 +79,7 @@ $string['downloadtitle'] = 'Download this content as a H5P file.';
$string['editor'] = 'Editor';
$string['embed'] = 'Embed';
$string['embedtitle'] = 'View the embed code for this content.';
+$string['error:emptycontentid'] = 'The given URL is incorrect or you cannot edit this file.';
$string['eventh5pviewed'] = 'H5P content viewed';
$string['eventh5pdeleted'] = 'H5P deleted';
$string['feature'] = 'Feature';
@@ -88,6 +90,7 @@ $string['filter_displayh5p_description'] = 'The Display H5P filter converts URLs
$string['fullscreen'] = 'Fullscreen';
$string['gpl'] = 'General Public License v3';
$string['h5p'] = 'H5P';
+$string['h5peditor'] = 'H5P Editor';
$string['h5ptitle'] = 'Visit h5p.org to check out more content.';
$string['h5pfilenotfound'] = 'H5P file not found';
$string['h5pinvalidurl'] = 'Invalid H5P content URL.';