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CVE-2025-65899

MediumPublished

Kalmia CMS version 0.2.0 contains a user enumeration vulnerability in its authentication mechanism. The application returns different error messages for...

Published: Dec 4, 2025
Updated: Dec 8, 2025
Assigning CNA: mitre
Evidence observed: Aug 18, 2026

Primary CVSS

5.3/ 10Medium

nvd · CVSS 3.1

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

EPSS probability estimate

0.3%

Low · next 30 days

Percentile: 28.2%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

Kalmia CMS version 0.2.0 contains a user enumeration vulnerability in its authentication mechanism. The application returns different error messages for invalid users (user_not_found) versus valid users with incorrect passwords (invalid_password). This observable response discrepancy allows unauthenticated attackers to enumerate valid usernames on the system.

Sources

CVE-2025-65899Exploit
DifuseHQ Kalmia CMS version 0.2.0 is vulnerable to user enumeration through distinguishable error responses in the /kal-api/auth/jwt/create authentication endpoint.

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