diff --git a/openrouter/src/settings/dns/enabled.cpp b/openrouter/src/settings/dns/enabled.cpp
index 903e41a..8d5966a 100644
--- a/openrouter/src/settings/dns/enabled.cpp
+++ b/openrouter/src/settings/dns/enabled.cpp
@@ -60,11 +60,11 @@ namespace settings {
             if (new_dns_enabled == "0") {
                 system("rc stop dnsmasq");
                 system("rc del dnsmasq");
-                syslog(LOG_INFO, "DNS is disabled");
+                syslog(LOG_INFO, "%s", "DNS is disabled");
             } else {
                 system("rc restart dnsmasq");
                 system("rc add dnsmasq");
-                syslog(LOG_INFO, "DNS is enabled");
+                syslog(LOG_INFO, "%s", "DNS is enabled");
             }
             dnsfileout << stoi(new_dns_enabled);
             dnsfileout.close();
diff --git a/openrouter/src/settings/dns/local_domains.cpp b/openrouter/src/settings/dns/local_domains.cpp
index 60064aa..3bb4e32 100644
--- a/openrouter/src/settings/dns/local_domains.cpp
+++ b/openrouter/src/settings/dns/local_domains.cpp
@@ -74,7 +74,7 @@ namespace settings {
             }
             domainsfile.close();
             system("rc restart dnsmasq");
-            syslog(LOG_INFO, "DNS local domains changed");
+            syslog(LOG_INFO, "%s", "DNS local domains changed");
             std::string responsedata = R"({"success":"true"})";
             response.set_content(responsedata, JSON_TYPE);
             return;
diff --git a/openrouter/src/settings/dns/servers.cpp b/openrouter/src/settings/dns/servers.cpp
index e38c5a8..23600ac 100644
--- a/openrouter/src/settings/dns/servers.cpp
+++ b/openrouter/src/settings/dns/servers.cpp
@@ -61,7 +61,7 @@ namespace settings {
         if (authenticate(json_body["token"])) {
             std::ofstream dnsserversfile("/etc/dnsmasq.conf.d/resolv.conf");
             nlohmann::json servers = json_body["servers"];
-            for (const nlohmann::json_abi_v3_11_3::json server : servers) {
+            for (const nlohmann::json_abi_v3_11_3::json &server : servers) {
                 std::string srv = server;
                 if (server.empty()) {
                     continue;
@@ -70,7 +70,7 @@ namespace settings {
             }
             dnsserversfile.close();
             system("rc restart dnsmasq");
-            syslog(LOG_INFO, "DNS servers changed");
+            syslog(LOG_INFO, "%s", "DNS servers changed");
             std::string responsedata = R"({"success":"true"})";
             response.set_content(responsedata, JSON_TYPE);
             return;
diff --git a/openrouter/src/settings/ftp/ftp.cpp b/openrouter/src/settings/ftp/ftp.cpp
index 9a39348..bc9aa5d 100644
--- a/openrouter/src/settings/ftp/ftp.cpp
+++ b/openrouter/src/settings/ftp/ftp.cpp
@@ -60,11 +60,11 @@ namespace settings {
             if (new_ftp_enabled == "0") {
                 system("rc stop ftp");
                 system("rc del ftp");
-                syslog(LOG_INFO, "Ftp is disabled");
+                syslog(LOG_INFO, "%s", "Ftp is disabled");
             } else {
                 system("rc start ftp");
                 system("rc add ftp");
-                syslog(LOG_INFO, "Ftp is enabled");
+                syslog(LOG_INFO, "%s", "Ftp is enabled");
             }
             ftpfileout << stoi(new_ftp_enabled);
             ftpfileout.close();
diff --git a/openrouter/src/settings/ssh/keys.cpp b/openrouter/src/settings/ssh/keys.cpp
index 6543f3b..1c138df 100644
--- a/openrouter/src/settings/ssh/keys.cpp
+++ b/openrouter/src/settings/ssh/keys.cpp
@@ -70,7 +70,7 @@ namespace settings {
             }
             keysfile.close();
             system("rc restart ssh");
-            syslog(LOG_INFO, "SSH keys changed");
+            syslog(LOG_INFO, "%s", "SSH keys changed");
             std::string responsedata = R"({"success":"true"})";
             response.set_content(responsedata, JSON_TYPE);
             return;
diff --git a/openrouter/src/settings/ssh/port.cpp b/openrouter/src/settings/ssh/port.cpp
index fa4c63f..1def97a 100644
--- a/openrouter/src/settings/ssh/port.cpp
+++ b/openrouter/src/settings/ssh/port.cpp
@@ -74,7 +74,7 @@ namespace settings {
             system(systemrequest.str().c_str());
             system("rc restart ssh");
             std::string syslogstring = "SSH port changed to " + new_ssh_port;
-            syslog(LOG_INFO, syslogstring.c_str());
+            syslog(LOG_INFO, "%s", syslogstring.c_str());
             std::ifstream sshportfile(SSH_PORT_PATH);
             int ssh_port;
             sshportfile >> ssh_port;
diff --git a/openrouter/src/settings/ssh/status.cpp b/openrouter/src/settings/ssh/status.cpp
index c69bf6a..c2a2b03 100644
--- a/openrouter/src/settings/ssh/status.cpp
+++ b/openrouter/src/settings/ssh/status.cpp
@@ -60,11 +60,11 @@ namespace settings {
             if (new_ssh_status == "0") {
                 system("rc stop ssh");
                 system("rc del ssh");
-                syslog(LOG_INFO, "SSH is disabled");
+                syslog(LOG_INFO, "%s", "SSH is disabled");
             } else {
                 system("rc start ssh");
                 system("rc add ssh");
-                syslog(LOG_INFO, "SSH is enabled");
+                syslog(LOG_INFO, "%s", "SSH is enabled");
             }
             sshfileout << stoi(new_ssh_status);
             sshfileout.close();
diff --git a/openrouter/src/settings/telnet/enabled.cpp b/openrouter/src/settings/telnet/enabled.cpp
index 46c8ad0..9629056 100644
--- a/openrouter/src/settings/telnet/enabled.cpp
+++ b/openrouter/src/settings/telnet/enabled.cpp
@@ -64,11 +64,11 @@ namespace settings {
             if (new_telnet_enabled == "0") {
                 system("rc stop telnet");
                 system("rc del telnet");
-                syslog(LOG_INFO, "Telnet is disabled");
+                syslog(LOG_INFO, "%s", "Telnet is disabled");
             } else {
                 system("rc start telnet");
                 system("rc add telnet");
-                syslog(LOG_INFO, "Telnet is enabled");
+                syslog(LOG_INFO, "%s", "Telnet is enabled");
             }
             telnetfileout << stoi(new_telnet_enabled);
             telnetfileout.close();
diff --git a/openrouter/src/settings/telnet/port.cpp b/openrouter/src/settings/telnet/port.cpp
index 3833e88..0d5ad78 100644
--- a/openrouter/src/settings/telnet/port.cpp
+++ b/openrouter/src/settings/telnet/port.cpp
@@ -65,7 +65,7 @@ namespace settings {
             telnetportfileout.close();
             system("rc restart telnet");
             std::string syslogstring = "Telnet port changed to " + new_telnet_port;
-            syslog(LOG_INFO, syslogstring.c_str());
+            syslog(LOG_INFO, "%s", syslogstring.c_str());
             std::ifstream telnetportfile("/etc/openrouter/telnet/port");
             int telnet_port;
             telnetportfile >> telnet_port;
diff --git a/openrouter/src/settings/wifi/channel.cpp b/openrouter/src/settings/wifi/channel.cpp
index 1734205..a349299 100644
--- a/openrouter/src/settings/wifi/channel.cpp
+++ b/openrouter/src/settings/wifi/channel.cpp
@@ -84,7 +84,7 @@ namespace settings {
             system(systemrequest.str().c_str());
             system("rc restart hostapd");
             std::string syslogstring = "WIFI channel changed to " + new_channel;
-            syslog(LOG_INFO, syslogstring.c_str());
+            syslog(LOG_INFO, "%s", syslogstring.c_str());
 
             std::ifstream changedwifisettingsfile(WIFI_SETTINGS_PATH);
             std::string wifi_channel;
diff --git a/openrouter/src/settings/wifi/name.cpp b/openrouter/src/settings/wifi/name.cpp
index 5825ee6..9dcad28 100644
--- a/openrouter/src/settings/wifi/name.cpp
+++ b/openrouter/src/settings/wifi/name.cpp
@@ -84,7 +84,7 @@ namespace settings {
             system(systemrequest.str().c_str());
             system("rc restart hostapd");
             std::string syslogstring = "WIFI name changed to " + new_wifi_name;
-            syslog(LOG_INFO, syslogstring.c_str());
+            syslog(LOG_INFO, "%s", syslogstring.c_str());
 
             std::ifstream changedwifisettingsfile(WIFI_SETTINGS_PATH);
             std::string wifi_name;
diff --git a/openrouter/src/settings/wifi/password.cpp b/openrouter/src/settings/wifi/password.cpp
index aacd82b..9e158ff 100644
--- a/openrouter/src/settings/wifi/password.cpp
+++ b/openrouter/src/settings/wifi/password.cpp
@@ -93,7 +93,7 @@ namespace settings {
             system(systemrequest.str().c_str());
             system("rc restart hostapd");
             std::string syslogstring = "WIFI password changed";
-            syslog(LOG_INFO, syslogstring.c_str());
+            syslog(LOG_INFO, "%s", syslogstring.c_str());
             std::stringstream responsedata;
             responsedata << R"({"success":"ok"})";
             response.set_content(responsedata.str(), JSON_TYPE);
diff --git a/openrouter/src/settings/wifi/status.cpp b/openrouter/src/settings/wifi/status.cpp
index 3b924bf..c97b70a 100644
--- a/openrouter/src/settings/wifi/status.cpp
+++ b/openrouter/src/settings/wifi/status.cpp
@@ -59,11 +59,11 @@ namespace settings {
             if (new_wifi_status == "0") {
                 system("rc stop hostapd");
                 system("rc del hostapd");
-                syslog(LOG_INFO, "WIFI is disabled");
+                syslog(LOG_INFO, "%s", "WIFI is disabled");
             } else {
                 system("rc start hostapd");
                 system("rc add hostapd");
-                syslog(LOG_INFO, "WIFI is enabled");
+                syslog(LOG_INFO, "%s", "WIFI is enabled");
             }
             wififileout << stoi(new_wifi_status);
             wififileout.close();