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[UPDT] HORILLA: Updated has_xss() regex patterns to include embed, object, iframe, svg, math, link, and meta

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Horilla
2025-08-28 16:57:51 +05:30
parent eef88d2fa7
commit 48e6a3cd7f
1 changed files with 6 additions and 6 deletions
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12
horilla/models.py
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@@ -40,16 +40,16 @@ setattr(FieldFile, "url", url)
def has_xss(value: str) -> bool:
"""Detect common XSS attempts (script tags, event handlers, js URLs)."""
"""Detect common XSS attempts (scripts, event handlers, js URLs, active content)."""
if not isinstance(value, str):
return False
xss_patterns = [
r"<\s*script.*?>.*?<\s*/\s*script\s*>",
r"javascript\s*:",
r"on\w+\s*=",
r"<\s*script.*?>.*?(eval|setTimeout|setInterval|new\s+Function|XMLHttpRequest|fetch|\$\s*\().*?<\s*/\s*script\s*>",
r"on\w+\s*=\s*['\"]?\s*(eval|setTimeout|setInterval|new\s+Function|XMLHttpRequest|fetch|\$\s*\()[^>]*",
r"<\s*script.*?>.*?<\s*/\s*script\s*>", # <script> ... </script>
r"javascript\s*:", # javascript: pseudo-protocol
r"on\w+\s*=", # inline event handlers (onclick, onload, etc.)
r"<\s*(embed|object|iframe|svg|math|link|meta).*?>", # dangerous active content
r"on\w+\s*=\s*['\"]?\s*(eval|setTimeout|setInterval|new\s+Function|XMLHttpRequest|fetch|\$\s*\()[^>]*", # JS API abuse
]
combined = re.compile("|".join(xss_patterns), re.IGNORECASE | re.DOTALL)