Index: svnadmin/hooks/scripts/vulnxml-unique.sh
===================================================================
--- svnadmin/hooks/scripts/vulnxml-unique.sh
+++ svnadmin/hooks/scripts/vulnxml-unique.sh
@@ -28,12 +28,22 @@
 		head/security/vuxml/vuln.xml)
 			VULN_XML=1
 			;;
+		branches/*/security/vuxml/vuln.xml)
+			if [ ${type} != 'A' ]; then
+				VULN_XML=2
+			fi
+			;;
 		*)
 			OTHER=1
 			;;
 	esac
 done
 
+if [ $VULN_XML -eq 2 ]; then
+	echo "Commits to security/vuxml/vuln.xml are only allowed on HEAD" 1>&2
+	exit 1
+fi
+
 # yell
 if [ $VULN_XML -gt 0 -a $OTHER -gt 0 ] ; then
 	echo "Commit to security/vuxml/vuln.xml first, and then other files" 1>&2