CVE-2026-79660

MEDIUM 5.3

Ech0 before 4.7.3 Email Disclosure via Public API

CVSS Score

5.3

EPSS Score

0.0%

EPSS Percentile

0th

Ech0 versions before 4.7.3 expose guest commenter email addresses through public API endpoints due to improper JSON serialization tags on the Comment model. Unauthenticated attackers can harvest all commenter emails by calling the /api/comments and /api/comments/public endpoints without authentication.

CWE	CWE-200
Vendor	lin-snow
Product	ech0
Published	Aug 25, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Affected Versions

lin-snow / Ech0

0 < 4.7.3

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/lin-snow/Ech0/security/advisories/GHSA-rj4g-rqgh-rx9h vulncheck.com: https://www.vulncheck.com/advisories/ech0-before-email-disclosure-via-public-api

Credits

🔍 adrgs aisafe-bot