CVE-2025-62617: Admidio SQL Injection Vulnerability

CVE-2025-62617 Overview

CVE-2025-62617 is an authenticated SQL injection vulnerability in Admidio, an open-source user management platform. The flaw exists in the member assignment data retrieval functionality prior to version 4.3.17. Authenticated users who hold permissions to assign members to a role, such as administrators, can inject arbitrary SQL through this endpoint. Successful exploitation grants attackers the ability to read, modify, or delete arbitrary database records. The maintainers patched the issue in Admidio version 4.3.17. The vulnerability is classified under CWE-89 (Improper Neutralization of Special Elements used in an SQL Command).

Critical Impact
An authenticated attacker with role-management privileges can execute arbitrary SQL and achieve full compromise of the Admidio application database.

Affected Products

Admidio versions prior to 4.3.17
Self-hosted Admidio deployments exposing the member assignment interface
Any Admidio instance where non-administrator accounts hold role-assignment permissions

Discovery Timeline

2025-10-22 - CVE-2025-62617 published to NVD
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-62617

Vulnerability Analysis

The vulnerability resides in the member assignment data retrieval code path within Admidio. This code path accepts user-supplied input and concatenates it into a SQL query without proper parameterization or sanitization. An authenticated user with permission to assign members to a role can submit crafted parameters that break out of the intended query context. The injected SQL then executes against the underlying database with the privileges of the Admidio database account.

Because the affected endpoint is reachable from any session holding role-management rights, the attack surface includes all administrator accounts and any custom roles granted equivalent permissions. The remediation in commit fde81ae869e88a3cf42201f2548d57df785a37cb introduces proper input handling for the affected query. Refer to the GitHub Security Advisory GHSA-2v5m-cq9w-fc33 for vendor details.

Root Cause

The root cause is improper neutralization of special elements in a SQL command [CWE-89]. The vulnerable function builds a SQL statement using untrusted request data instead of using prepared statements or strict allow-list validation. Database engine syntax characters supplied by an attacker are interpreted as SQL rather than as literal values.

Attack Vector

The attack vector is network-based and requires authentication with role-assignment privileges. The attacker sends a crafted HTTP request to the member assignment data retrieval endpoint with malicious SQL embedded in a parameter. No user interaction is required beyond the attacker's own authenticated session. Exploitation yields confidentiality, integrity, and availability impact against the Admidio database.

No public proof-of-concept exploit is currently available. Technical details of the fix are documented in the Admidio patch commit.

Detection Methods for CVE-2025-62617

Indicators of Compromise

Unexpected SQL syntax characters such as single quotes, UNION, SELECT, --, or ; appearing in HTTP parameters submitted to Admidio member assignment endpoints.
Database error messages or anomalous response sizes returned to authenticated administrator sessions.
Outbound data egress or unexpected row counts in Admidio query logs following requests from authenticated users.
New, modified, or deleted records in Admidio tables that do not correspond to legitimate administrative actions.

Detection Strategies

Enable Admidio and database query logging and review queries originating from the member assignment workflow for unparameterized input.
Deploy a web application firewall with SQL injection signatures in front of Admidio and alert on payloads targeting role and member assignment endpoints.
Correlate authenticated session activity with database query patterns to identify accounts issuing anomalous query structures.

Monitoring Recommendations

Monitor administrator and role-management account logins for unusual source IPs, off-hours activity, or session anomalies.
Track schema-altering and bulk read operations on Admidio databases and alert on deviations from baseline.
Audit the membership of Admidio roles that grant member assignment permissions and review changes on a recurring basis.

How to Mitigate CVE-2025-62617

Immediate Actions Required

Upgrade all Admidio instances to version 4.3.17 or later without delay.
Audit accounts that hold role assignment permissions and remove privileges from accounts that do not require them.
Rotate database credentials used by Admidio if compromise is suspected and review database audit logs for unauthorized queries.
Restrict network exposure of the Admidio administration interface to trusted networks or VPN access only.

Patch Information

The vendor released the fix in Admidio 4.3.17. The corrective change is included in commit fde81ae869e88a3cf42201f2548d57df785a37cb. Full advisory information is available in GHSA-2v5m-cq9w-fc33. Apply the upgrade per the project's standard update procedure and verify the running version after deployment.

Workarounds

If immediate patching is not possible, reduce the number of accounts assigned role-management permissions to the minimum required.
Place the Admidio application behind a web application firewall configured to block SQL injection payloads on member assignment routes.
Enforce strong authentication, including multi-factor authentication, for all administrator and role-management accounts to reduce the risk of credential abuse.

bash

# Verify Admidio version after upgrade
grep -R "ADMIDIO_VERSION" /path/to/admidio/adm_program/system/constants.php
# Expected output should reference 4.3.17 or later