How severe is CVE-2025-65899?

CVE-2025-65899 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2025-65899 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-65899?

CVE-2025-65899 affects Difuse Kalmia. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-65899?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-65899 have an EU (EUVD) identifier?

Yes. CVE-2025-65899 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-201311.

When was CVE-2025-65899 published?

CVE-2025-65899 was published on 2025-12-04 and last updated on 2026-06-17.

CVE-2025-65899

CVE-2025-65899 is a medium-severity vulnerability in Difuse Kalmia with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-204.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 0% (23rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-201311
Weakness: CWE-204
Affected product: Difuse Kalmia
Published: 2025-12-04
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2025-65899?: CVE-2025-65899 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2025-65899 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-65899?: CVE-2025-65899 affects Difuse Kalmia. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-65899?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-65899 have an EU (EUVD) identifier?: Yes. CVE-2025-65899 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-201311.
When was CVE-2025-65899 published?: CVE-2025-65899 was published on 2025-12-04 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:difuse:kalmia:0.2.0:*:*:*:*:node.js:*:*

More vulnerabilities in Difuse Kalmia

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CVE-2025-46390 — High (CVSS 7.5): CWE-204: Observable Response Discrepancy
CVE-2025-3092 — High (CVSS 7.5): An unauthenticated remote attacker can enumerate valid user names from an unprotected endpoint.

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