[KongchangAI]
Unverified50% confidenceEventExact time

A developer shared on Reddit that Claude Opus 5.5 proactively discovered an IDOR vulnerability in their SaaS application's invoice endpoint during a code refactoring process (any logged-in user could retrieve other companies' invoices by modifying the ID in the URL).

1
Sources
50%
Confidence
Short-term (~14 days)
Relevance
10/17/2026
First Seen
Valid until: 10/31/2026

Sources

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https://kongchang.com/claim/1052208
API
curl https://kongchang.com/api/v1/knowledge/claims/1052208
MCP
get_claim(id=1052208)