[FIX] web_editor: limit size of generated images

This should avoid disrupting layouts.

closes odoo/odoo#75959

X-original-commit: baca6bd7
Signed-off-by: Olivier Dony (odo) <odo@openerp.com>

addons/web_editor/controllers/main.py

@@ -45,7 +45,7 @@ class Web_Editor(http.Controller):
             :returns PNG image converted from given font
         """
         # Make sure we have at least size=1
-        size = max(1, size)
+        size = max(1, min(size, 512))
         # Initialize font
         addons_path = http.addons_manifest['web']['addons_path']
         font_obj = ImageFont.truetype(addons_path + font, size)