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Fixes #9296: Improve Markdown link sanitization

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jeremystretch
2022-05-12 10:41:29 -04:00
parent c4c93ee346
commit 37903776fd
2 changed files with 3 additions and 2 deletions
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4
netbox/utilities/templatetags/builtins/filters.py
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@@ -150,11 +150,11 @@ def render_markdown(value):
value = strip_tags(value)
# Sanitize Markdown links
pattern = fr'\[([^\]]+)\]\((?!({schemes})).*:(.+)\)'
pattern = fr'\[([^\]]+)\]\(\s*(?!({schemes})).*:(.+)\)'
value = re.sub(pattern, '[\\1](\\3)', value, flags=re.IGNORECASE)
# Sanitize Markdown reference links
pattern = fr'\[(.+)\]:\s*(?!({schemes}))\w*:(.+)'
pattern = fr'\[([^\]]+)\]:\s*(?!({schemes}))\w*:(.+)'
value = re.sub(pattern, '[\\1]: \\3', value, flags=re.IGNORECASE)
# Render Markdown