CVE-2026-9524: EasyReport SQL Injection Vulnerability

CVE-2026-9524 Overview

CVE-2026-9524 is a SQL injection vulnerability in xianrendzw EasyReport up to version 2.0.17.0522_Beta. The flaw resides in the execute function of the REST Endpoint component. Attackers can manipulate the reportParams argument to inject arbitrary SQL statements into backend database queries. The vulnerability is exploitable remotely over the network and requires low-level privileges to abuse. The vendor was contacted about this disclosure but did not respond, leaving deployments without an official patch. The weakness is classified under [CWE-74] (Improper Neutralization of Special Elements in Output Used by a Downstream Component).

Critical Impact
Remote authenticated attackers can inject SQL through the reportParams argument, exposing report data and potentially modifying backend database records.

Affected Products

xianrendzw EasyReport up to and including 2.0.17.0522_Beta
REST Endpoint component (execute function)
Deployments using the reportParams request argument

Discovery Timeline

2026-05-26 - CVE-2026-9524 published to the National Vulnerability Database (NVD)
2026-05-26 - Last updated in NVD database

Technical Details for CVE-2026-9524

Vulnerability Analysis

The vulnerability exists in the execute function exposed by the EasyReport REST Endpoint. The function accepts a reportParams argument that is passed into dynamically constructed SQL statements without sufficient sanitization or parameterization. An authenticated attacker can craft a reportParams value containing SQL syntax that alters the structure of the query executed against the underlying database.

Successful exploitation can expose report data, configuration tables, and user records stored in the reporting database. Depending on the database account privileges, attackers may also modify or delete records. Because the endpoint is reachable over the network, exploitation does not require local access to the host. The vendor has not acknowledged the disclosure, so no upstream fix is currently available.

Root Cause

The root cause is improper neutralization of input passed to a downstream SQL interpreter [CWE-74]. The execute function concatenates the reportParams value into a SQL statement instead of binding it as a parameter. This allows attacker-controlled data to be interpreted as SQL code by the database engine.

Attack Vector

An attacker sends a crafted HTTP request to the REST Endpoint with a malicious reportParams value. The attack vector is Network, attack complexity is low, and low privileges are required. No user interaction is needed. The disclosure references a public bug report describing the request flow against the vulnerable endpoint. See the GitHub Bug Report and the VulDB Vulnerability #365543 entry for technical details.

Detection Methods for CVE-2026-9524

Indicators of Compromise

HTTP requests to the EasyReport REST Endpoint containing SQL meta-characters such as single quotes, UNION, SELECT, or comment markers in the reportParams parameter.
Database query errors or anomalously long query execution times originating from the EasyReport application user.
Unexpected outbound database connections or large result sets returned from EasyReport report endpoints.

Detection Strategies

Inspect web server and application logs for requests to the execute endpoint where reportParams contains SQL keywords or encoded SQL syntax.
Enable database query auditing on the EasyReport schema to surface queries that deviate from known report templates.
Deploy a Web Application Firewall (WAF) rule set tuned for SQL injection signatures on the EasyReport URI paths.

Monitoring Recommendations

Alert on authenticated EasyReport sessions that issue an abnormal volume of requests to the execute endpoint.
Correlate authentication events with subsequent database errors to identify probing activity.
Baseline normal reportParams values per report ID and flag deviations for review.

How to Mitigate CVE-2026-9524

Immediate Actions Required

Restrict network access to the EasyReport REST Endpoint to trusted internal networks or VPN users only.
Require strong authentication and limit which application accounts can call the execute function.
Configure the database account used by EasyReport with least-privilege permissions, restricting write and schema-modification rights.

Patch Information

No official patch is available. The vendor was contacted about this disclosure but did not respond, according to the VulDB Vulnerability #365543 record. Organizations running EasyReport 2.0.17.0522_Beta or earlier should plan to migrate away from the application or apply compensating controls until a fix is published.

Workarounds

Place a WAF or reverse proxy in front of EasyReport with SQL injection signature inspection enabled for the reportParams parameter.
Disable or block the vulnerable execute REST Endpoint at the proxy layer if it is not required for production use.
Implement input validation at an upstream gateway to reject reportParams values containing SQL syntax.

bash

# Example NGINX rule to block SQL meta-characters in reportParams
location /easyreport/ {
    if ($args ~* "reportParams=[^&]*(['\"]|--|/\*|union|select|insert|update|delete)") {
        return 403;
    }
    proxy_pass http://easyreport_backend;
}