CVE-2026-79668 — Ech0 before 4.7.3 Unauthenticated Like Endpoint Metric Inflation
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 wi…
Published: 2026-08-25 · CVSS: 6.9 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7