CVE-2025-2637: Jizhicms Authorization Bypass Vulnerability

CVE-2025-2637 Overview

CVE-2025-2637 is an improper authorization vulnerability in JIZHICMS versions up to 1.7.0. The flaw resides in the Account Profile Page functionality served by /user/userinfo.html. An authenticated remote attacker can manipulate the jifen parameter to modify account point values without proper authorization checks. The issue is tracked under CWE-266: Incorrect Privilege Assignment. Public disclosure of the exploit details has occurred through the GitHub Vulnerability Paper, increasing exposure risk for unpatched deployments.

Critical Impact
Authenticated users can tamper with the jifen (points) parameter to elevate their own account attributes, bypassing intended authorization controls on the JIZHICMS user profile endpoint.

Affected Products

JIZHICMS versions up to and including 1.7.0
Vendor: jizhicms
Component: Account Profile Page (/user/userinfo.html)

Discovery Timeline

2025-03-23 - CVE-2025-2637 published to NVD
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-2637

Vulnerability Analysis

The vulnerability affects the account profile update workflow in JIZHICMS, a PHP-based content management system. When an authenticated user submits changes to their profile via /user/userinfo.html, the server-side handler processes user-controlled fields without enforcing strict authorization on sensitive attributes. The jifen parameter, which represents user points or credits within the platform, is treated as user-writable input. This allows a low-privileged user to modify a value that should be governed by server-side business logic. Because the endpoint is network-reachable and requires only standard user credentials, exploitation is straightforward for anyone with a registered account.

Root Cause

The root cause is missing server-side authorization on privileged profile attributes. The application accepts client-supplied values for fields that should be controlled exclusively by administrative or transactional logic. This maps to CWE-266 (Incorrect Privilege Assignment), where the software assigns a privilege or attribute to an actor without verifying that the actor is authorized to receive it.

Attack Vector

An attacker registers or logs into a JIZHICMS site and sends a crafted HTTP request to /user/userinfo.html containing a manipulated jifen value. The server persists the attacker-supplied value, effectively granting unauthorized points or credit balances. No user interaction beyond the attacker's own session is required, and the attack originates over the network. Full technical steps are documented in the public GitHub advisory and mirrored on VulDB entry 300638.

No verified proof-of-concept code is included here. Refer to the linked advisory for reproduction details.

Detection Methods for CVE-2025-2637

Indicators of Compromise

Unexpected changes in the jifen (points) column of the JIZHICMS user database for non-administrative accounts.
HTTP POST requests to /user/userinfo.html that include a jifen parameter in the body.
User accounts showing point balances inconsistent with recorded transactions or administrative grants.

Detection Strategies

Enable verbose access logging on the web server for the /user/ path and alert on requests containing the jifen parameter.
Deploy a web application firewall (WAF) rule that inspects profile update POST bodies and blocks or flags requests attempting to set restricted fields such as jifen.
Perform periodic database audits comparing user point balances against transaction ledgers to identify anomalies.

Monitoring Recommendations

Correlate application logs with authentication events to identify low-privileged accounts issuing profile updates that alter privileged fields.
Monitor for enumeration patterns in which a single account repeatedly submits profile updates in rapid succession.
Track outbound integrations (payment, redemption, rewards) that consume the jifen value for spikes that suggest abuse of manipulated balances.

How to Mitigate CVE-2025-2637

Immediate Actions Required

Restrict access to the JIZHICMS user profile endpoint until a vendor patch is applied or a compensating control is in place.
Audit the jifen field across all user accounts and reset anomalous balances to a known-good baseline.
Deploy a WAF rule that strips or rejects the jifen parameter from client-submitted profile update requests.

Patch Information

At the time of publication, no vendor advisory or fixed release has been listed in the NVD entry for JIZHICMS beyond version 1.7.0. Administrators should monitor the JIZHICMS project repository and VulDB entry 300638 for updates and apply any published fix promptly.

Workarounds

Implement server-side validation that ignores or overrides the jifen parameter in profile update handlers, allowing changes only through administrative interfaces or verified transaction flows.
Enforce an allowlist of fields accepted by the /user/userinfo.html endpoint, rejecting any request containing restricted attributes.
Isolate the JIZHICMS deployment behind authenticated reverse proxy controls to limit the population of users capable of reaching the vulnerable endpoint.

bash

# Example nginx rule to block requests containing the jifen parameter in profile updates
location = /user/userinfo.html {
    if ($request_method = POST) {
        if ($request_body ~* "(^|&)jifen=") {
            return 403;
        }
    }
    proxy_pass http://jizhicms_backend;
}