CVE-2026-71622 Overview
CVE-2026-71622 is a SQL injection vulnerability [CWE-89] in Zhao-github ApiAdmin version 5.0.1. The flaw resides in the User.php component and allows remote attackers to inject arbitrary SQL statements. Successful exploitation exposes sensitive information stored in the backend database.
The vulnerability requires user interaction and network access. It scores 7.4 on the CVSS 3.1 scale, reflecting a scope change and high confidentiality impact. No integrity or availability impact is reported, but attackers can enumerate database contents and extract credentials or session data.
Critical Impact
Remote attackers can extract sensitive database contents from ApiAdmin v5.0.1 by injecting SQL through the User.php component without prior authentication.
Affected Products
- Zhao-github ApiAdmin v5.0.1
- ApiAdmin User.php component
- Deployments exposing the ApiAdmin management interface to untrusted networks
Discovery Timeline
- 2026-09-04 - CVE-2026-71622 published to NVD
- 2026-09-09 - Last updated in NVD database
Technical Details for CVE-2026-71622
Vulnerability Analysis
The vulnerability exists in the User.php component of ApiAdmin v5.0.1. Untrusted input reaches a SQL query without proper parameterization or escaping. Attackers craft malicious payloads that alter query logic and force the database to return unintended data.
Because the CVSS vector indicates a scope change (S:C), the injection reaches data outside the vulnerable component's security context. Confidentiality is rated high, meaning attackers can read arbitrary rows from accessible database tables. Integrity and availability remain unaffected in the documented exploitation path.
The issue is tracked as CWE-89: Improper Neutralization of Special Elements used in an SQL Command. Details of the payload construction are documented in the Notion CVE-2026-71622 Analysis.
Root Cause
The root cause is missing input validation and unsafe query construction inside User.php. User-supplied parameters are concatenated directly into a SQL statement. The application does not use prepared statements or parameter binding for the affected code path.
Attack Vector
The attack vector is network-based and requires user interaction, per the CVSS vector. A remote attacker submits a crafted HTTP request containing SQL metacharacters to the vulnerable User.php endpoint. The database processes the injected clauses and returns data through application responses or blind timing signals.
No verified proof-of-concept code is published in a public exploit database. Refer to the Notion CVE-2026-71622 Analysis for the request pattern used by the reporter.
Detection Methods for CVE-2026-71622
Indicators of Compromise
- HTTP requests to User.php containing SQL metacharacters such as ', --, UNION SELECT, SLEEP(, or BENCHMARK(.
- Unusual outbound response sizes from ApiAdmin endpoints that indicate bulk data extraction.
- Database error strings appearing in application logs tied to the User.php handler.
- Repeated requests with incrementing parameter values consistent with automated SQL injection tooling.
Detection Strategies
- Deploy web application firewall (WAF) signatures that match common SQL injection payloads targeting the User.php route.
- Enable database query logging and alert on parameterized-query violations or dynamic statements originating from ApiAdmin.
- Correlate authentication anomalies with requests to User.php to identify credential enumeration attempts.
Monitoring Recommendations
- Monitor web server access logs for suspicious query string patterns targeting ApiAdmin endpoints.
- Track database user activity for unexpected SELECT statements against user, session, or credential tables.
- Alert on repeated 500-series responses from User.php, which often accompany injection probing.
How to Mitigate CVE-2026-71622
Immediate Actions Required
- Restrict access to the ApiAdmin management interface using network controls, VPN, or IP allowlisting.
- Audit User.php request logs for evidence of prior exploitation attempts and rotate exposed credentials.
- Deploy WAF rules that block SQL injection payloads targeting the ApiAdmin application until a vendor fix is confirmed.
Patch Information
No vendor patch is referenced in the NVD entry at the time of publication. Monitor the Notion CVE-2026-71622 Analysis and the Zhao-github ApiAdmin repository for updated releases. Upgrade to a fixed version once published.
Workarounds
- Place ApiAdmin behind an authenticated reverse proxy to prevent unauthenticated access to User.php.
- Apply database least-privilege by limiting the ApiAdmin service account to only required tables.
- Enable a WAF ruleset that blocks common SQL injection signatures and inspects requests to User.php.
- Disable or remove the ApiAdmin deployment in production environments where it is not actively used.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.