Slack incoming webhook URL
Part of Security, which counts for 30% of the overall score. When this check fires it deducts 15 points from that category, once per scan, no matter how many places it turns up.
What it detects
A Slack incoming webhook URL was found. Anyone with the URL can post messages into the connected channel.
Why it matters
A Slack incoming webhook URL is itself the credential: anyone with the URL can post messages into the connected channel. Leaked webhook URLs are used to spam channels or post phishing links that look internal. There is no separate token to check.
How to fix it
Move the webhook URL into an environment variable or secret store and read it at runtime. Regenerate the webhook in the Slack app configuration to invalidate the leaked URL.
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