CVE-2026-79668: Missing Authentication for Critical Function in lin-snow Ech0
Ech0 before 4.7.3 contains an authentication bypass vulnerability in the PUT /api/echo/like/:id endpoint that allows unauthenticated attackers to increment engagement metrics without identity verification or rate limiting. Attackers can send repeated requests to arbitrarily inflate the fav_count field for any known echo identifier, compromising the integrity of engagement metrics and social ranking systems.
CVE-2026-79668: Missing Authentication for Critical Function in lin-snow Ech0
Description
Ech0 before 4.7.3 contains an authentication bypass vulnerability in the PUT /api/echo/like/:id endpoint that allows unauthenticated attackers to increment engagement metrics without identity verification or rate limiting. Attackers can send repeated requests to arbitrarily inflate the fav_count field for any known echo identifier, compromising the integrity of engagement metrics and social ranking systems.
CVSS v4.0
Score 6.9medium
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-08-25T11:10:13.697Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a8d820eacd9273b49225442
Added to database: 08/25/2026, 11:52:46 UTC
Last updated: 08/26/2026, 01:08:48 UTC
Views: 10
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