Index: openacs-4/packages/xowiki/tcl/package-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/xowiki/tcl/package-procs.tcl,v
diff -u -N -r1.332.2.95 -r1.332.2.96
--- openacs-4/packages/xowiki/tcl/package-procs.tcl	28 Nov 2021 13:00:56 -0000	1.332.2.95
+++ openacs-4/packages/xowiki/tcl/package-procs.tcl	7 Dec 2021 09:00:45 -0000	1.332.2.96
@@ -1198,7 +1198,7 @@
       # Report true errors in the error log and return the template.
       #
       ad_log error $errorMsg
-      return [:error_msg -template_file $error_template $errorMsg]
+      return [:error_msg -template_file $error_template [ns_quotehtml $errorMsg]]
     }
 
     #