Advisories

stoatchat before 0.15.0 Permission Bypass via message_fetch

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severity
medium
date
Affecting
  • stoatchat >= 0, < 0.15.0

CWE
  • CWE-863 Incorrect Authorization
CVSS
7.1
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Credit
arpitjain099
Description
stoatchat before 0.15.0 contains a permission bypass vulnerability in the message_fetch route that checks only ViewChannel permission instead of requiring ReadMessageHistory. Attackers with ViewChannel access but ReadMessageHistory denied can retrieve individual message content by ID, bypassing the intended history restriction enforced by bulk read routes.

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