diff --git a/src/network/network_admin.cpp b/src/network/network_admin.cpp
--- a/src/network/network_admin.cpp
+++ b/src/network/network_admin.cpp
@@ -514,11 +514,9 @@ NetworkRecvStatus ServerNetworkAdminSock
 {
 	if (this->status == ADMIN_STATUS_INACTIVE) return this->SendError(NETWORK_ERROR_NOT_EXPECTED);
 
-	char json[NETWORK_GAMESCRIPT_JSON_LENGTH];
+	std::string json = p->Recv_string(NETWORK_GAMESCRIPT_JSON_LENGTH);
 
-	p->Recv_string(json, sizeof(json));
-
-	DEBUG(net, 6, "[admin] GameScript JSON from '%s' (%s): %s", this->admin_name.c_str(), this->admin_version.c_str(), json);
+	DEBUG(net, 6, "[admin] GameScript JSON from '%s' (%s): %s", this->admin_name.c_str(), this->admin_version.c_str(), json.c_str());
 
 	Game::NewEvent(new ScriptEventAdminPort(json));
 	return NETWORK_RECV_STATUS_OKAY;
@@ -561,12 +559,12 @@ NetworkRecvStatus ServerNetworkAdminSock
  * Send GameScript JSON output.
  * @param json The JSON string.
  */
-NetworkRecvStatus ServerNetworkAdminSocketHandler::SendGameScript(const char *json)
+NetworkRecvStatus ServerNetworkAdminSocketHandler::SendGameScript(const std::string_view json)
 {
 	/* At the moment we cannot transmit anything larger than MTU. So we limit
 	 *  the maximum amount of json data that can be sent. Account also for
 	 *  the trailing \0 of the string */
-	if (strlen(json) + 1 >= NETWORK_GAMESCRIPT_JSON_LENGTH) return NETWORK_RECV_STATUS_OKAY;
+	if (json.size() + 1 >= NETWORK_GAMESCRIPT_JSON_LENGTH) return NETWORK_RECV_STATUS_OKAY;
 
 	Packet *p = new Packet(ADMIN_PACKET_SERVER_GAMESCRIPT);
 
@@ -941,7 +939,7 @@ void NetworkAdminConsole(const char *ori
  * Send GameScript JSON to the admin network (if they did opt in for the respective update).
  * @param json The JSON data as received from the GameScript.
  */
-void NetworkAdminGameScript(const char *json)
+void NetworkAdminGameScript(const std::string_view json)
 {
 	for (ServerNetworkAdminSocketHandler *as : ServerNetworkAdminSocketHandler::IterateActive()) {
 		if (as->update_frequency[ADMIN_UPDATE_GAMESCRIPT] & ADMIN_FREQUENCY_AUTOMATIC) {
diff --git a/src/network/network_admin.h b/src/network/network_admin.h
--- a/src/network/network_admin.h
+++ b/src/network/network_admin.h
@@ -64,7 +64,7 @@ public:
 	NetworkRecvStatus SendChat(NetworkAction action, DestType desttype, ClientID client_id, const std::string &msg, int64 data);
 	NetworkRecvStatus SendRcon(uint16 colour, const char *command);
 	NetworkRecvStatus SendConsole(const char *origin, const char *command);
-	NetworkRecvStatus SendGameScript(const char *json);
+	NetworkRecvStatus SendGameScript(const std::string_view json);
 	NetworkRecvStatus SendCmdNames();
 	NetworkRecvStatus SendCmdLogging(ClientID client_id, const CommandPacket *cp);
 	NetworkRecvStatus SendRconEnd(const char *command);
@@ -110,7 +110,7 @@ void NetworkAdminChat(NetworkAction acti
 void NetworkAdminUpdate(AdminUpdateFrequency freq);
 void NetworkServerSendAdminRcon(AdminIndex admin_index, TextColour colour_code, const char *string);
 void NetworkAdminConsole(const char *origin, const char *string);
-void NetworkAdminGameScript(const char *json);
+void NetworkAdminGameScript(const std::string_view json);
 void NetworkAdminCmdLogging(const NetworkClientSocket *owner, const CommandPacket *cp);
 
 #endif /* NETWORK_ADMIN_H */
diff --git a/src/script/api/script_admin.cpp b/src/script/api/script_admin.cpp
--- a/src/script/api/script_admin.cpp
+++ b/src/script/api/script_admin.cpp
@@ -139,7 +139,7 @@
 		return 1;
 	}
 
-	NetworkAdminGameScript(json.c_str());
+	NetworkAdminGameScript(json);
 
 	sq_pushinteger(vm, 1);
 	return 1;
diff --git a/src/script/api/script_event_types.cpp b/src/script/api/script_event_types.cpp
--- a/src/script/api/script_event_types.cpp
+++ b/src/script/api/script_event_types.cpp
@@ -118,23 +118,18 @@ bool ScriptEventCompanyAskMerger::Accept
 	return ScriptObject::DoCommand(0, this->owner, 0, CMD_BUY_COMPANY);
 }
 
-ScriptEventAdminPort::ScriptEventAdminPort(const char *json) :
+ScriptEventAdminPort::ScriptEventAdminPort(const std::string &json) :
 		ScriptEvent(ET_ADMIN_PORT),
-		json(stredup(json))
+		json(json)
 {
 }
 
-ScriptEventAdminPort::~ScriptEventAdminPort()
-{
-	free(this->json);
-}
-
 #define SKIP_EMPTY(p) while (*(p) == ' ' || *(p) == '\n' || *(p) == '\r') (p)++;
 #define RETURN_ERROR(stack) { ScriptLog::Error("Received invalid JSON data from AdminPort."); if (stack != 0) sq_pop(vm, stack); return nullptr; }
 
 SQInteger ScriptEventAdminPort::GetObject(HSQUIRRELVM vm)
 {
-	const char *p = this->json;
+	const char *p = this->json.c_str();
 
 	if (this->ReadTable(vm, p) == nullptr) {
 		sq_pushnull(vm);
@@ -168,7 +163,8 @@ const char *ScriptEventAdminPort::ReadSt
 		p++;
 	}
 
-	sq_pushstring(vm, value, p - value);
+	size_t len = p - value;
+	sq_pushstring(vm, value, len);
 	p++; // Step past the end-of-string marker (")
 
 	return p;
diff --git a/src/script/api/script_event_types.hpp b/src/script/api/script_event_types.hpp
--- a/src/script/api/script_event_types.hpp
+++ b/src/script/api/script_event_types.hpp
@@ -837,8 +837,7 @@ public:
 	/**
 	 * @param json The JSON string which got sent.
 	 */
-	ScriptEventAdminPort(const char *json);
-	~ScriptEventAdminPort();
+	ScriptEventAdminPort(const std::string &json);
 
 	/**
 	 * Convert an ScriptEvent to the real instance.
@@ -853,7 +852,7 @@ public:
 	SQInteger GetObject(HSQUIRRELVM vm);
 
 private:
-	char *json; ///< The JSON string.
+	std::string json; ///< The JSON string.
 
 	/**
 	 * Read a table from a JSON string.