CVE-2026-33638
5.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Summary
Ech0 is an open-source, self-hosted publishing platform for personal idea sharing. Prior to version 4.2.0, GET /api/allusers is mounted as a public endpoint and returns user records without authentication. This allows remote unauthenticated user enumeration and exposure of user profile metadata. A fix is available in v4.2.0.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| lin-snow | Ech0 | < 4.2.0 | affected |
Weaknesses
- CWE-862: CWE-862: Missing Authorization
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: poc
- Automatable: yes
- Technical Impact: partial
References
- https://github.com/lin-snow/Ech0/security/advisories/GHSA-m983-7426-5hrj
- https://github.com/lin-snow/Ech0/commit/acbf1fd71011e6b9e1e6a911128056a19862f681
- https://github.com/lin-snow/Ech0/releases/tag/v4.2.0
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