Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2025-23214— Cosmos userbase checking vulnerability

Quick assessment

Affected
azukaar Cosmos-Server
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Cosmos是Yann Stepienik个人开发者的一个自行托管家庭服务器的方法。旨在解决日益令人担忧的易受攻击的自托管应用程序和个人服务器的问题。 Cosmos 0.17.7之前版本存在安全漏洞。攻击者利用该漏洞可以通过监视登录时返回的错误代码，确定数据库中是否存在用户。

AI Predicted 5.3 Difficulty: Trivial EPSS 0.63% · P48

Possible ATT&CK Techniques 1 AI

T1078 · Valid Accounts
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2025-23214

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Cosmos userbase checking vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Cosmos provides users the ability self-host a home server by acting as a secure gateway to your application, as well as a server manager. By monitoring the error code returned in the login, it is possible to figure out whether a user exist or not in the database. Patched in 0.17.7.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
响应差异性信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Cosmos 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cosmos是Yann Stepienik个人开发者的一个自行托管家庭服务器的方法。旨在解决日益令人担忧的易受攻击的自托管应用程序和个人服务器的问题。 Cosmos 0.17.7之前版本存在安全漏洞。攻击者利用该漏洞可以通过监视登录时返回的错误代码，确定数据库中是否存在用户。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
azukaar Cosmos-Server < 0.17.7 -

II. Public POCs for CVE-2025-23214

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2025-23214

请登录查看更多情报信息。

Patches & Fixes for CVE-2025-23214 (1)

Vendor Advisories for CVE-2025-23214 (1)

IV. Related Vulnerabilities

Same product: Cosmos-Server
Same vendor: azukaar
Same weakness: CWE-204

V. Comments for CVE-2025-23214

No comments yet

Leave a comment