bug(security): CVE-2025-53865 - XSS bug Extensive fixes in devel, responsive templates known to be exploitable. Similar constructs in classic and minimal templates not known to be exploitable, but changed anyway. doc/upgrading.txt: Reformat to 66 characters. Update with assigned CVE number. Add section on fixing tal:replace with unsafe data. Document analysis and assumptions in comment in file. doc/security.txt: Update with CVE number.

#!/usr/bin/env python

# Roundup requires Python 2.7+ as mentioned in doc\installation.txt
from __future__ import print_function
import sys

VERSION_NEEDED = (2, 7)

if sys.version_info < VERSION_NEEDED:
    print("Content-Type: text/plain\n")
    print("Roundup requires Python %s.%s or newer." % VERSION_NEEDED)
    sys.exit(0)