Advisories

Capgo - Unauthorized Channel Overwrite and Ownership Takeover via POST /channel Name Collision

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severity
high
date
Affecting
  • Capgo >= 0, < 12.128.2

CWE
  • CWE-285 Improper Authorization
CVSS
7.2
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N
Credit
Judel777
Description
Capgo before 12.128.2 contains an authorization bypass vulnerability in the channel creation endpoint that allows authenticated users to overwrite existing channels by reusing their names. Attackers with app.create_channel permission can exploit a logic mismatch between existence validation and upsert operations to reassign channel ownership and modify critical production channel configurations.

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