Vulnerability in Difuse Kalmia
CVE-2025-65899
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.003 (25.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 26th percentile — 25.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Difuse Kalmia — versions 0.2.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/DifuseHQ/Kalmia (Product)
- github.com/Noxurge/CVE-2025-65899/blob/main/README.md (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2025-65899?
- CVE-2025-65899 is a medium-severity vulnerability in Difuse Kalmia, classified under Observable Response Discrepancy. CVSS score: 5.3/10. Published 2025-12-04.
- How severe is CVE-2025-65899?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2025-65899 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.