CVE-2026-79660

Ech0 before 4.7.3 Email Disclosure via Public API

Published Aug 25, 2026 CVSS 4.0 · 6.9 Medium EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Lin-snow
Lin-snow ech0
Vendors & Products Lin-snow
Lin-snow ech0
Type Values Removed Values Added
Description 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.
Title Ech0 before 4.7.3 Email Disclosure via Public API
First Time appeared Ech0
Ech0 ech0
Weaknesses CWE-200
CPEs cpe:2.3:a:ech0:ech0:*:*:*:*:*:*:*:*
Vendors & Products Ech0
Ech0 ech0
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Aug 25, 2026, 3:32 PM
Reserved
Aug 25, 2026, 11:09 AM
Status
Deferred
Published
Aug 25, 2026, 12:16 PM
Modified
Aug 31, 2026, 8:50 PM