CVE-2026-79668
Ech0 before 4.7.3 Unauthenticated Like Endpoint Metric Inflation
- State
- Published
- Severity
- 6.9 Medium
- Published
- Aug 25, 2026
- Updated
- Aug 26, 2026
- Reserved
- Aug 25, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.9 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 5.3 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N | VulnCheck |
Weaknesses
- CWE-306 Missing Authentication for Critical Function
Affected Products
| Product | Versions |
|---|---|
Ech0lin-snow |
|
References
- GitHub Security Advisory (GHSA-rgj7-vg8v-j4wr)vendor-advisory
- VulnCheck Advisory: Ech0 before 4.7.3 Unauthenticated Like Endpoint Metric Inflationthird-party-advisory
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