Fix use HTML escape on File System Edit File load (#22492)

CHANGELOG.md

@@ -18,6 +18,7 @@ All notable changes to this project will be documented in this file.
 ### Fixed
 - ESP32 upgrade by file upload response based on file size (#22500)
 - Wrong GUI Module and Template drop down list indexes regression
+- Use HTML escape on File System Edit File load (#22492)
 
 ### Removed
 

RELEASENOTES.md

@@ -166,6 +166,7 @@ The latter links can be used for OTA upgrades too like ``OtaUrl https://ota.tasm
 
 ### Fixed
 - FUNC_COMMAND linked list command buffer corruption by shutter driver
+- Use HTML escape on File System Edit File load [#22492](https://github.com/arendst/Tasmota/issues/22492)
 - Prevent crashing when `display.ini` is missing end `#` [#22471](https://github.com/arendst/Tasmota/issues/22471)
 - Alexa Hue with multiple devices [#22383](https://github.com/arendst/Tasmota/issues/22383)
 - Mitsubishi Electric HVAC Standby Stage for MiElHVAC [#22430](https://github.com/arendst/Tasmota/issues/22430)

tasmota/tasmota_xdrv_driver/xdrv_50_filesystem.ino

@@ -1603,7 +1603,7 @@ void UfsEditor(void) {
         AddLog(LOG_LEVEL_DEBUG_MORE, PSTR("UFS: UfsEditor: read=%d"), l);
         if (l < 0) { break; }
         buf[l] = '\0';
-        WSContentSend_P(PSTR("%s"), buf);
+        WSContentSend_P(PSTR("%s"), HtmlEscape((char*)buf).c_str());
         filelen -= l;
       }
       fp.close();