diff --git a/htdocs/adherents/card.php b/htdocs/adherents/card.php
index 598e24ee220..820e9455efb 100644
--- a/htdocs/adherents/card.php
+++ b/htdocs/adherents/card.php
@@ -1336,7 +1336,7 @@ if (is_object($objcanvas) && $objcanvas->displayCanvasExists($action)) {
 				if (!$value['active']) {
 					break;
 				}
-				print '<tr><td>'.$langs->trans($value['label']).'</td><td><input type="text" name="'.$key.'" class="minwidth100" value="'.(GETPOSTISSET($key) ? GETPOST($key, 'alphanohtml') : $object->socialnetworks[$key]).'"></td></tr>';
+				print '<tr><td>'.$langs->trans($value['label']).'</td><td><input type="text" name="'.$key.'" class="minwidth100" value="'.(GETPOSTISSET($key) ? GETPOST($key, 'alphanohtml') : (isset($object->socialnetworks[$key])? $object->socialnetworks[$key] : null)).'"></td></tr>';
 			}
 		}
 
diff --git a/htdocs/admin/security_file.php b/htdocs/admin/security_file.php
index 5ea581296af..8bddb3579e7 100644
--- a/htdocs/admin/security_file.php
+++ b/htdocs/admin/security_file.php
@@ -64,8 +64,8 @@ if (GETPOST('sendit') && !empty($conf->global->MAIN_UPLOAD_DOC)) {
 if ($action == 'updateform') {
 	$antivircommand = GETPOST('MAIN_ANTIVIRUS_COMMAND', 'restricthtml'); // Use GETPOST restricthtml because we must accept ". Example c:\Progra~1\ClamWin\bin\clamscan.exe
 	$antivirparam = GETPOST('MAIN_ANTIVIRUS_PARAM', 'restricthtml'); // Use GETPOST restricthtml because we must accept ". Example --database="C:\Program Files (x86)\ClamWin\lib"
-	$antivircommand = dol_string_nospecial($antivircommand, '', array("|", ";", "<", ">", "&")); // Sanitize command
-	$antivirparam = dol_string_nospecial($antivirparam, '', array("|", ";", "<", ">", "&")); // Sanitize params
+	$antivircommand = dol_string_nospecial($antivircommand, '', array("|", ";", "<", ">", "&", "+")); // Sanitize command
+	$antivirparam = dol_string_nospecial($antivirparam, '', array("|", ";", "<", ">", "&", "+")); // Sanitize params
 
 	if ($antivircommand && !empty($dolibarr_main_restrict_os_commands)) {
 		$arrayofallowedcommand = explode(',', $dolibarr_main_restrict_os_commands);
diff --git a/htdocs/core/actions_linkedfiles.inc.php b/htdocs/core/actions_linkedfiles.inc.php
index 6c5ac91c9bb..62ca6ab5361 100644
--- a/htdocs/core/actions_linkedfiles.inc.php
+++ b/htdocs/core/actions_linkedfiles.inc.php
@@ -92,7 +92,27 @@ if (GETPOST('sendit', 'alpha') && !empty($conf->global->MAIN_UPLOAD_DOC) && !emp
 		if (substr($link, 0, 7) != 'http://' && substr($link, 0, 8) != 'https://' && substr($link, 0, 7) != 'file://' && substr($link, 0, 7) != 'davs://') {
 			$link = 'http://'.$link;
 		}
-		dol_add_file_process($upload_dir, 0, 1, 'userfile', null, $link, '', 0);
+
+		// Parse $newUrl
+		$newUrlArray = parse_url($link);
+
+		// Check URL is external
+		if (!getDolGlobalString('MAIN_ALLOW_SVG_FILES_AS_EXTERNAL_LINKS')) {
+			if (!empty($newUrlArray['path']) && preg_match('/\.svg/i', $newUrlArray['path'])) {
+				$error++;
+				$langs->load("errors");
+				setEventMessages($langs->trans('ErrorSVGFilesNotAllowedAsLinksWithout', 'MAIN_ALLOW_SVG_FILES_AS_EXTERNAL_LINKS'), null, 'errors');
+			}
+		}
+		// Alow external links to svg ?
+		if (!getDolGlobalString('MAIN_ALLOW_LOCAL_LINKS_AS_EXTERNAL_LINKS')) {
+			// Test $newUrlAray['host'] to check link is external
+			// TODO
+		}
+
+		if (!$error) {
+			dol_add_file_process($upload_dir, 0, 1, 'userfile', null, $link, '', 0);
+		}
 	}
 }
 
diff --git a/htdocs/core/filemanagerdol/connectors/php/config.inc.php b/htdocs/core/filemanagerdol/connectors/php/config.inc.php
index 368b82c42e7..7407ab706a7 100644
--- a/htdocs/core/filemanagerdol/connectors/php/config.inc.php
+++ b/htdocs/core/filemanagerdol/connectors/php/config.inc.php
@@ -160,7 +160,7 @@ $Config['QuickUploadPath']['File'] = $Config['UserFilesPath'];
 $Config['QuickUploadAbsolutePath']['File'] = $Config['UserFilesAbsolutePath'];
 
 $Config['AllowedExtensions']['Image'] = array('bmp', 'gif', 'jpeg', 'jpg', 'png', 'ai');
-if (!empty($conf->global->MAIN_ALLOW_SVG_FILES_AS_IMAGES)) {
+if (getDolGlobalString('MAIN_ALLOW_SVG_FILES_AS_IMAGES')) {
 	$Config['AllowedExtensions']['Image'][] = 'svg';
 }
 $Config['DeniedExtensions']['Image']	= array();
diff --git a/htdocs/langs/en_US/errors.lang b/htdocs/langs/en_US/errors.lang
index ea1297bc442..1ca41cadfb7 100644
--- a/htdocs/langs/en_US/errors.lang
+++ b/htdocs/langs/en_US/errors.lang
@@ -315,6 +315,7 @@ ErrorUploadFileDragDropPermissionDenied=There was an error while the file(s) upl
 ErrorFixThisHere=<a href="%s">Fix this here</a>
 ErrorTheUrlOfYourDolInstanceDoesNotMatchURLIntoOAuthSetup=Error: The URL of you current instance (%s) does not match the URL defined into your OAuth2 login setup (%s). Doing OAuth2 login in such a configuration is not allowed.
 ErrorMenuExistValue=A Menu already exist with this Title or URL
+ErrorSVGFilesNotAllowedAsLinksWithout=SVG files are not allowed as external links without option %s 
 
 # Warnings
 WarningParamUploadMaxFileSizeHigherThanPostMaxSize=Your PHP parameter upload_max_filesize (%s) is higher than PHP parameter post_max_size (%s). This is not a consistent setup.
diff --git a/htdocs/projet/card.php b/htdocs/projet/card.php
index 1d2f0817c20..c281ea45e22 100644
--- a/htdocs/projet/card.php
+++ b/htdocs/projet/card.php
@@ -964,7 +964,7 @@ if ($action == 'create' && $user->rights->projet->creer) {
 			print '</td>';
 			print '<td>';
 			if (!empty($conf->global->PROJECT_USE_OPPORTUNITIES)) {
-				print '<input type="checkbox" id="usage_opportunity" name="usage_opportunity"'.(GETPOSTISSET('usage_opportunity') ? (GETPOST('usage_opportunity', 'alpha') != '' ? ' checked="checked"' : '') : ($object->usage_opportunity ? ' checked="checked"' : '')).'"> ';
+				print '<input type="checkbox" id="usage_opportunity" name="usage_opportunity"'.(GETPOSTISSET('usage_opportunity') ? (GETPOST('usage_opportunity', 'alpha') != '' ? ' checked="checked"' : '') : ($object->usage_opportunity ? ' checked="checked"' : '')).'> ';
 				$htmltext = $langs->trans("ProjectFollowOpportunity");
 				print '<label for="usage_opportunity">'.$form->textwithpicto($langs->trans("ProjectFollowOpportunity"), $htmltext).'</label>';
 				print '<script>';
@@ -990,7 +990,7 @@ if ($action == 'create' && $user->rights->projet->creer) {
 				print '<br>';
 			}
 			if (empty($conf->global->PROJECT_HIDE_TASKS)) {
-				print '<input type="checkbox" id="usage_task" name="usage_task"' . (GETPOSTISSET('usage_task') ? (GETPOST('usage_task', 'alpha') != '' ? ' checked="checked"' : '') : ($object->usage_task ? ' checked="checked"' : '')) . '"> ';
+				print '<input type="checkbox" id="usage_task" name="usage_task"' . (GETPOSTISSET('usage_task') ? (GETPOST('usage_task', 'alpha') != '' ? ' checked="checked"' : '') : ($object->usage_task ? ' checked="checked"' : '')) . '> ';
 				$htmltext = $langs->trans("ProjectFollowTasks");
 				print '<label for="usage_task">'.$form->textwithpicto($langs->trans("ProjectFollowTasks"), $htmltext).'</label>';
 				print '<script>';
@@ -1016,7 +1016,7 @@ if ($action == 'create' && $user->rights->projet->creer) {
 				print '<br>';
 			}
 			if (empty($conf->global->PROJECT_HIDE_TASKS) && !empty($conf->global->PROJECT_BILL_TIME_SPENT)) {
-				print '<input type="checkbox" id="usage_bill_time" name="usage_bill_time"' . (GETPOSTISSET('usage_bill_time') ? (GETPOST('usage_bill_time', 'alpha') != '' ? ' checked="checked"' : '') : ($object->usage_bill_time ? ' checked="checked"' : '')) . '"> ';
+				print '<input type="checkbox" id="usage_bill_time" name="usage_bill_time"' . (GETPOSTISSET('usage_bill_time') ? (GETPOST('usage_bill_time', 'alpha') != '' ? ' checked="checked"' : '') : ($object->usage_bill_time ? ' checked="checked"' : '')) . '> ';
 				$htmltext = $langs->trans("ProjectBillTimeDescription");
 				print '<label for="usage_bill_time">'.$form->textwithpicto($langs->trans("BillTime"), $htmltext).'</label>';
 				print '<script>';
@@ -1042,7 +1042,7 @@ if ($action == 'create' && $user->rights->projet->creer) {
 				print '<br>';
 			}
 			if (isModEnabled('eventorganization')) {
-				print '<input type="checkbox" id="usage_organize_event" name="usage_organize_event"'. (GETPOSTISSET('usage_organize_event') ? (GETPOST('usage_organize_event', 'alpha') != '' ? ' checked="checked"' : '') : ($object->usage_organize_event ? ' checked="checked"' : '')) . '"> ';
+				print '<input type="checkbox" id="usage_organize_event" name="usage_organize_event"'. (GETPOSTISSET('usage_organize_event') ? (GETPOST('usage_organize_event', 'alpha') != '' ? ' checked="checked"' : '') : ($object->usage_organize_event ? ' checked="checked"' : '')) . '> ';
 				$htmltext = $langs->trans("EventOrganizationDescriptionLong");
 				print '<label for="usage_organize_event">'.$form->textwithpicto($langs->trans("ManageOrganizeEvent"), $htmltext).'</label>';
 				print '<script>';
@@ -1250,26 +1250,26 @@ if ($action == 'create' && $user->rights->projet->creer) {
 			print '</td>';
 			print '<td>';
 			if (!empty($conf->global->PROJECT_USE_OPPORTUNITIES)) {
-				print '<input type="checkbox" disabled name="usage_opportunity"'.(GETPOSTISSET('usage_opportunity') ? (GETPOST('usage_opportunity', 'alpha') != '' ? ' checked="checked"' : '') : ($object->usage_opportunity ? ' checked="checked"' : '')).'"> ';
+				print '<input type="checkbox" disabled name="usage_opportunity"'.(GETPOSTISSET('usage_opportunity') ? (GETPOST('usage_opportunity', 'alpha') != '' ? ' checked="checked"' : '') : ($object->usage_opportunity ? ' checked="checked"' : '')).'> ';
 				$htmltext = $langs->trans("ProjectFollowOpportunity");
 				print $form->textwithpicto($langs->trans("ProjectFollowOpportunity"), $htmltext);
 				print '<br>';
 			}
 			if (empty($conf->global->PROJECT_HIDE_TASKS)) {
-				print '<input type="checkbox" disabled name="usage_task"'.(GETPOSTISSET('usage_task') ? (GETPOST('usage_task', 'alpha') != '' ? ' checked="checked"' : '') : ($object->usage_task ? ' checked="checked"' : '')).'"> ';
+				print '<input type="checkbox" disabled name="usage_task"'.(GETPOSTISSET('usage_task') ? (GETPOST('usage_task', 'alpha') != '' ? ' checked="checked"' : '') : ($object->usage_task ? ' checked="checked"' : '')).'> ';
 				$htmltext = $langs->trans("ProjectFollowTasks");
 				print $form->textwithpicto($langs->trans("ProjectFollowTasks"), $htmltext);
 				print '<br>';
 			}
 			if (empty($conf->global->PROJECT_HIDE_TASKS) && !empty($conf->global->PROJECT_BILL_TIME_SPENT)) {
-				print '<input type="checkbox" disabled name="usage_bill_time"'.(GETPOSTISSET('usage_bill_time') ? (GETPOST('usage_bill_time', 'alpha') != '' ? ' checked="checked"' : '') : ($object->usage_bill_time ? ' checked="checked"' : '')).'"> ';
+				print '<input type="checkbox" disabled name="usage_bill_time"'.(GETPOSTISSET('usage_bill_time') ? (GETPOST('usage_bill_time', 'alpha') != '' ? ' checked="checked"' : '') : ($object->usage_bill_time ? ' checked="checked"' : '')).'> ';
 				$htmltext = $langs->trans("ProjectBillTimeDescription");
 				print $form->textwithpicto($langs->trans("BillTime"), $htmltext);
 				print '<br>';
 			}
 
 			if (isModEnabled('eventorganization')) {
-				print '<input type="checkbox" disabled name="usage_organize_event"'.(GETPOSTISSET('usage_organize_event') ? (GETPOST('usage_organize_event', 'alpha') != '' ? ' checked="checked"' : '') : ($object->usage_organize_event ? ' checked="checked"' : '')).'"> ';
+				print '<input type="checkbox" disabled name="usage_organize_event"'.(GETPOSTISSET('usage_organize_event') ? (GETPOST('usage_organize_event', 'alpha') != '' ? ' checked="checked"' : '') : ($object->usage_organize_event ? ' checked="checked"' : '')).'> ';
 				$htmltext = $langs->trans("EventOrganizationDescriptionLong");
 				print $form->textwithpicto($langs->trans("ManageOrganizeEvent"), $htmltext);
 			}