CVE-2026-79672

MEDIUM 5.5

Ech0 before 4.4.3 Authentication Bypass via Comment Panel

CVSS Score

5.5

EPSS Score

0.0%

EPSS Percentile

0th

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 system settings by directly accessing the unprotected panel endpoints.

CWE	CWE-862
Vendor	lin-snow
Product	ech0
Published	Aug 25, 2026

Stay Ahead of the Next One

Get instant alerts for lin-snow ech0

Be the first to know when new medium vulnerabilities affecting lin-snow ech0 are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

High

Availability

None

Affected Versions

lin-snow / Ech0

0 < 4.4.3

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/lin-snow/Ech0/security/advisories/GHSA-fwg7-53p4-g33c vulncheck.com: https://www.vulncheck.com/advisories/ech0-before-authentication-bypass-via-comment-panel

Credits

🔍 offset