diff --git a/vars/deployer.groovy b/vars/deployer.groovy
index 9e6e915..85d39ce 100644
--- a/vars/deployer.groovy
+++ b/vars/deployer.groovy
@@ -1,40 +1,59 @@
 def capellaNightlyProduct(String inputPath, String outputDirName) {
-  def outputPath = getFullCapellaProductPath(outputDirName)
-  def sshAccount = getSSHAccount()
-  
-  sshagent (['projects-storage.eclipse.org-bot-ssh']) {
-    sh "ssh ${sshAccount} mkdir -p ${outputPath}"
-    sh "scp -rp ${inputPath} ${sshAccount}:${outputPath}"
-  }
+	if (isInvalid(outputDirName)) {
+		log.error("Deployment Error: ${outputDirName} is not recognised")
+	}
+	else {
+		def outputPath = getFullCapellaProductPath(outputDirName)
+		def sshAccount = getSSHAccount()
+		
+		sshagent (['projects-storage.eclipse.org-bot-ssh']) {
+			sh "ssh ${sshAccount} mkdir -p ${outputPath}"
+			sh "scp -rp ${inputPath} ${sshAccount}:${outputPath}"
+		}
+	}
 }
 
 def capellaNightlyUpdateSite(String inputPath, String outputDirName) {
-  def outputPath = getFullCapellaUpdateSitePath(outputDirName)
-  def sshAccount = getSSHAccount()
-  
-  sshagent (['projects-storage.eclipse.org-bot-ssh']) {
-    sh "ssh ${sshAccount} mkdir -p ${outputPath}"
-    sh "scp -rp ${inputPath} ${sshAccount}:${outputPath}"
-  }
+	if (isInvalid(outputDirName)) {
+		log.error("Deployment Error: ${outputDirName} is not recognised")
+	}
+	else {
+		def outputPath = getFullCapellaUpdateSitePath(outputDirName)
+		def sshAccount = getSSHAccount()
+	  
+		sshagent (['projects-storage.eclipse.org-bot-ssh']) {
+			sh "ssh ${sshAccount} mkdir -p ${outputPath}"
+			sh "scp -rp ${inputPath} ${sshAccount}:${outputPath}"
+		}
+	}
 }
 
 def cleanCapellaNightlyArtefacts(String dirName) {
-  def productPath = getFullCapellaProductPath(dirName)
-  def updateSitePath = getFullCapellaUpdateSitePath(dirName)
-  def sshAccount = getSSHAccount()
-  
-  sshagent (['projects-storage.eclipse.org-bot-ssh']) {
-    sh "ssh ${sshAccount} rm -rf ${productPath}"
-    sh "ssh ${sshAccount} rm -rf ${updateSitePath}"
-  }
+	if (isInvalid(dirName)) {
+		log.error("Deployment Error: ${dirName} is not recognised")
+	}
+	else {
+		
+		def productPath = getFullCapellaProductPath(dirName)
+		def updateSitePath = getFullCapellaUpdateSitePath(dirName)
+		def sshAccount = getSSHAccount()
+		
+		sshagent (['projects-storage.eclipse.org-bot-ssh']) {
+			sh "ssh ${sshAccount} rm -rf ${productPath}"
+			sh "ssh ${sshAccount} rm -rf ${updateSitePath}"
+		}
+	}
  
 }
 
 def addonNightlyDropins(String inputPath, String outputDirName) {
-  def addonDirName = getAddonDirName()
+	def addonDirName = getAddonDirName()
 	
-	if(addonDirName.isEmpty()) {
+	if(isInvalid(addonDirName)) {
 		log.error("Deployment Error: ${GIT_URL} repository is not recognised")
+		
+	} else if (isInvalid(outputDirName)) {
+		log.error("Deployment Error: ${outputDirName} is not recognised")
 	}
 	else {		
 		def outputPath = getFullAddonDropinsPath(addonDirName, outputDirName)
@@ -48,10 +67,13 @@ def addonNightlyDropins(String inputPath, String outputDirName) {
 }
 
 def addonNightlyUpdateSite(String inputPath, String outputDirName) {
-    def addonDirName = getAddonDirName()
+	def addonDirName = getAddonDirName()
 	
-	if(addonDirName.isEmpty()) {
+	if(isInvalid(addonDirName)) {
 		log.error("Deployment Error: ${GIT_URL} repository is not recognised")
+		
+	} else if (isInvalid(outputDirName)) {
+		log.error("Deployment Error: ${outputDirName} is not recognised")
 	}
 	else {		
 		def outputPath = getFullAddonDropinsUpdateSitePath(addonDirName, outputDirName)
@@ -65,11 +87,15 @@ def addonNightlyUpdateSite(String inputPath, String outputDirName) {
 }
 
 def addonNightlyProduct(String inputPath, String outputDirName) {
-    def addonDirName = getAddonDirName()
+	def addonDirName = getAddonDirName()
 	
-	if(addonDirName.isEmpty()) {
+	if(isInvalid(addonDirName)) {
 		log.error("Deployment Error: ${GIT_URL} repository is not recognised")
+		
+	} else if (isInvalid(outputDirName)) {
+		log.error("Deployment Error: ${outputDirName} is not recognised")
 	}
+	
 	else {		
 		def outputPath = getFullAddonProductPath(addonDirName, outputDirName)
 		def sshAccount = getSSHAccount()
@@ -84,8 +110,11 @@ def addonNightlyProduct(String inputPath, String outputDirName) {
 def cleanAddonNightlyArtefacts(String outputDirName) {
 	def addonDirName = getAddonDirName()
 	
-	if(addonDirName.isEmpty()) {
+	if(isInvalid(addonDirName)) {
 		log.error("Deployment Error: ${GIT_URL} repository is not recognised")
+		
+	} else if (isInvalid(outputDirName)) {
+		log.error("Deployment Error: ${outputDirName} is not recognised")
 	}
 	else {		
 		def dropinPath = getFullAddonDropinsPath(addonDirName, outputDirName)
@@ -135,6 +164,10 @@ private def getAddonDirName() {
 	}
 }
 
+private def isInvalid(path) {
+  return path.isEmpty() || path.contains('..')
+}
+
 private def getSSHAccount() {
   return "genie.capella@projects-storage.eclipse.org"
 }