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CVE Vulnerability Database

CVE-2025-3255: Admintwo Auth Bypass Vulnerability

CVE-2025-3255 is an authentication bypass flaw in xujiangfei admintwo 1.0 affecting the /user/home file. Attackers can exploit improper access controls remotely. This article covers technical details, impact, and mitigations.

Published:

CVE-2025-3255 Overview

CVE-2025-3255 is an improper access control vulnerability in xujiangfei admintwo version 1.0. The flaw resides in an unspecified function of the /user/home endpoint. An authenticated low-privileged attacker can manipulate the ID parameter to access user information belonging to other accounts. The attack is launched remotely over the network and requires no user interaction. The exploit details have been disclosed publicly, increasing the likelihood of opportunistic abuse against exposed instances. The weakness is classified under [CWE-266: Incorrect Privilege Assignment].

Critical Impact

Remote authenticated attackers can enumerate and disclose information belonging to other users by tampering with the ID parameter on /user/home.

Affected Products

  • xujiangfei admintwo 1.0

Discovery Timeline

  • 2025-04-04 - CVE-2025-3255 published to NVD
  • 2025-10-09 - Last updated in NVD database

Technical Details for CVE-2025-3255

Vulnerability Analysis

The vulnerability is an Insecure Direct Object Reference (IDOR) in the /user/home route of the admintwo application. The handler accepts an ID argument from the request but fails to verify whether the authenticated session owns the referenced resource. As a result, any logged-in user can substitute another user's identifier and retrieve that account's data. The issue is a server-side authorization gap, not a client-side concern, so hiding the parameter in the UI does not mitigate it. Because exploitation only requires a valid low-privilege account and a modified request, it is well suited to automated enumeration of user records.

Root Cause

The root cause is missing object-level authorization on the /user/home endpoint. The application trusts the ID value supplied by the client instead of binding the request to the authenticated session. Access control checks that compare the requested object owner to the current principal are absent, which falls under [CWE-266] improper privilege assignment.

Attack Vector

An attacker authenticates to the admintwo application with any valid account, then issues a request to /user/home while iterating the ID parameter. Each successful response returns information tied to the targeted user ID. The technical write-up is referenced through the GitHub CVE Resource and the VulDB entry #303325.

Detection Methods for CVE-2025-3255

Indicators of Compromise

  • Repeated authenticated requests to /user/home where the ID parameter changes sequentially or rapidly across values.
  • Single session accessing user profile data for multiple distinct ID values within a short window.
  • Anomalous outbound responses from the admintwo application containing PII for accounts unrelated to the requesting session.

Detection Strategies

  • Inspect application access logs for one session ID mapped to many unique ID values on /user/home.
  • Deploy a web application firewall rule that flags or blocks requests where the ID parameter does not match the authenticated user.
  • Correlate authentication events with resource access events to detect cross-account reads.

Monitoring Recommendations

  • Forward admintwo HTTP access logs to a centralized analytics platform and alert on per-session enumeration patterns.
  • Track baseline access rates to /user/home and trigger alerts when a session exceeds the normal request volume.
  • Audit user activity reports weekly for accounts that touched profile data outside their ownership.

How to Mitigate CVE-2025-3255

Immediate Actions Required

  • Restrict network exposure of the admintwo application to trusted networks or VPN access until a fix is available.
  • Revoke and rotate credentials for any accounts that may have been used to enumerate other users.
  • Review application logs for evidence of ID parameter tampering on /user/home.

Patch Information

No vendor advisory or official patch has been published for xujiangfei admintwo 1.0 at the time of writing. Consult the VulDB advisory and the public CVE write-up for updates.

Workarounds

  • Add a server-side authorization check that compares the session principal to the owner of the record identified by ID before returning data.
  • Replace direct numeric identifiers in /user/home with session-bound references, removing client-controlled ID selection entirely.
  • Place the application behind a reverse proxy or WAF that enforces a rule rejecting requests where ID differs from the authenticated user's identifier.

Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.

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