CVE-2026-79673 Ech0 before 4.4.3 Scope Bypass via profile:read Token

Ech0 before 4.4.3 protects the PUT /user endpoint with the profile:read scope, a read-only scope, but allows write operations including password changes. An attacker with an admin's profile:read access token can change the admin's password and login to obtain an unrestricted session token that...

CVE-2026-79673

Ech0 before 4.4.3 has a scope enforcement bypass in the PUT /user endpoint. The endpoint is guarded by the profile:read scope—a read-only permission—yet it still allows write operations, including password changes . An attacker holding an admin's profile:read access token can reset that admin's p...

CVE-2026-79672 Ech0 before 4.4.3 Authentication Bypass via Comment Panel

Ech0 before 4.4.3 fails to enforce scope-based authorization on nine comment panel admin endpoints, allowing access tokens with minimal scopes to perform full comment moderation operations. Attackers with a limited-scope access token can list, approve, reject, delete comments, and modify comment...

CVE-2026-79672 Ech0 before 4.4.3 Authentication Bypass via Comment Panel

Ech0 before 4.4.3 fails to enforce scope-based authorization on nine comment panel admin endpoints, allowing access tokens with minimal scopes to perform full comment moderation operations. Attackers with a limited-scope access token can list, approve, reject, delete comments, and modify comment...

CVE-2026-79671 Ech0 before 4.4.3 SSRF via DNS Resolution Bypass

Ech0 before 4.4.3 contains a server-side request forgery vulnerability in the validateWebhookURL function webhooksettingservice.go, which only validates literal IP addresses via net.ParseIP and fails to reject hostnames that DNS-resolve to private or internal IPs e.g., 169.254.169.254.nip.io. An...

EUVD-2026-65442

Ech0 before 4.4.3 fails to enforce scope-based authorization on nine comment panel admin endpoints, allowing access tokens with minimal scopes to perform full comment moderation operations. Attackers with a limited-scope access token can list, approve, reject, delete comments, and modify comment...

EUVD-2026-65443

Ech0 through 4.2.1 contains a server-side request forgery vulnerability in the validateWebhookURL function webhooksettingservice.go, which only validates literal IP addresses via net.ParseIP and fails to reject hostnames that DNS-resolve to private or internal IPs e.g., 169.254.169.254.nip.io. An...

CVE-2026-79671 Ech0 before 4.4.3 SSRF via DNS Resolution Bypass

Ech0 before 4.4.3 contains a server-side request forgery vulnerability in the validateWebhookURL function webhooksettingservice.go, which only validates literal IP addresses via net.ParseIP and fails to reject hostnames that DNS-resolve to private or internal IPs e.g., 169.254.169.254.nip.io. An...

CVE-2026-79671 Ech0 before 4.4.3 SSRF via DNS Resolution Bypass

Ech0 before 4.4.3 contains a server-side request forgery vulnerability in the validateWebhookURL function webhooksettingservice.go, which only validates literal IP addresses via net.ParseIP and fails to reject hostnames that DNS-resolve to private or internal IPs e.g., 169.254.169.254.nip.io. An...

CVE-2026-79672

Ech0 before version 4.4.3 fails to enforce scope-based authorization on nine comment panel admin endpoints. Attackers holding a limited-scope access token can bypass intended restrictions to perform full comment moderation operations, including listing, approving, rejecting, and deleting comments...

CVE-2026-79671

Ech0 versions through 4.2.1 contain a server-side request forgery (SSRF) vulnerability in the validateWebhookURL function (webhook_setting_service.go). The validation only rejects literal IP addresses via net.ParseIP() but fails to reject hostnames that DNS-resolve to private or internal addresse...

CVE-2026-79670 Ech0 before 4.4.3 Stored XSS via SVG Upload

Ech0 before 4.4.3 contains a stored cross-site scripting vulnerability in the file upload endpoint that validates Content-Type using only client-supplied headers without server-side inspection. Attackers with admin privileges can upload SVG or HTML files containing JavaScript that executes in the...

CVE-2026-79670

Ech0 before 4.4.3 contains a stored cross-site scripting (XSS) vulnerability in its file upload endpoint . The root cause is that the endpoint validates the Content-Type header using only client-supplied values without performing server-side inspection of the uploaded file. An attacker with admin...

EUVD-2026-65444

Ech0 before 4.4.3 contains a stored cross-site scripting vulnerability in the file upload endpoint that validates Content-Type using only client-supplied headers without server-side inspection. Attackers with admin privileges can upload SVG or HTML files containing JavaScript that executes in the...

CVE-2026-79670 Ech0 before 4.4.3 Stored XSS via SVG Upload

Ech0 before 4.4.3 contains a stored cross-site scripting vulnerability in the file upload endpoint that validates Content-Type using only client-supplied headers without server-side inspection. Attackers with admin privileges can upload SVG or HTML files containing JavaScript that executes in the...

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 without identity verification or rate limiting. Attackers can send repeated requests to arbitrarily inflate the favcount...

EUVD-2026-65445

Ech0 before 4.4.3 lacks authorization checks on system log endpoints allowing any authenticated non-admin user to read and stream all server logs. Attackers can access historical logs and real-time log streams via GET /api/system/logs, GET /api/system/logs/stream, and WS /ws/system/logs to gather...

CVE-2026-79669

Ech0 versions before 4.4.3 lack authorization checks on system log endpoints, allowing any authenticated non-admin user to read and stream all server logs. The vulnerable endpoints are GET /api/system/logs , GET /api/system/logs/stream , and WS /ws/system/logs . An attacker can gather reconnaissa...

CVE-2026-79668

Ech0 versions before 4.7.3 contain an authentication bypass in the PUT /api/echo/like/:id endpoint. The endpoint lacks both identity verification and rate limiting, allowing unauthenticated attackers to repeatedly increment the fav_count field for any known echo identifier. This can arbitrarily i...

CVE-2026-79669 Ech0 before 4.4.3 Missing Authorization on System Logs

Ech0 before 4.4.3 lacks authorization checks on system log endpoints allowing any authenticated non-admin user to read and stream all server logs. Attackers can access historical logs and real-time log streams via GET /api/system/logs, GET /api/system/logs/stream, and WS /ws/system/logs to gather...