CVE-2025-65899

MEDIUM

Kalmia 0.2.0 - Unauthenticated User Enumeration via Authentication Error Messages

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2025-65899. PoCs published by Noxurge.

AI-analyzed exploit summary The repository contains a functional PoC for CVE-2025-65899, which exploits an observable response discrepancy in Kalmia CMS v0.2.0 to enumerate valid usernames. The script automates the process by analyzing server responses to distinguish between non-existent and valid user accounts.

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.

Exploits (1)

nomisec WORKING POC 1 stars
by Noxurge · poc
https://github.com/Noxurge/CVE-2025-65899

The repository contains a functional PoC for CVE-2025-65899, which exploits an observable response discrepancy in Kalmia CMS v0.2.0 to enumerate valid usernames. The script automates the process by analyzing server responses to distinguish between non-existent and valid user accounts.

Classification
Working Poc 95%
Attack Type
Info Leak
Complexity
Trivial
Reliability
Reliable
Target: DifuseHQ Kalmia CMS v0.2.0
No auth needed
Prerequisites: Target URL · Password for testing
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (2)

Core 2

Scores

CVSS v3 5.3
EPSS 0.0031
EPSS Percentile 22.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact partial

Details

CWE
CWE-204
Status published
Products (1)
difuse/kalmia 0.2.0
Published Dec 04, 2025
Tracked Since Feb 18, 2026