CVE-2025-69366: Emerce Core Blind SQL Injection Flaw

CVE-2025-69366 Overview

CVE-2025-69366 is a Blind SQL Injection vulnerability in the TeconceTheme Emerce Core WordPress plugin (emerce-core). The flaw stems from improper neutralization of special elements used in SQL commands [CWE-89]. Unauthenticated attackers can send crafted requests over the network to inject SQL syntax into backend database queries. The vulnerability affects all versions of Emerce Core up to and including version 1.8. Successful exploitation allows attackers to infer database contents and potentially disrupt availability of the affected WordPress site.

Critical Impact
Unauthenticated attackers can perform blind SQL injection against vulnerable WordPress sites, leading to disclosure of database contents across security boundaries.

Affected Products

TeconceTheme Emerce Core plugin for WordPress
Emerce Core versions through 1.8
WordPress installations with the emerce-core plugin enabled

Discovery Timeline

2026-02-20 - CVE-2025-69366 published to NVD
2026-04-15 - Last updated in NVD database

Technical Details for CVE-2025-69366

Vulnerability Analysis

The vulnerability resides in the Emerce Core WordPress plugin developed by TeconceTheme. User-supplied input reaches a SQL query without proper sanitization or parameterization. Because the injection point does not return query results directly to the response body, exploitation takes the form of blind SQL injection. Attackers infer data through boolean-based or time-based techniques.

The attack requires no authentication and no user interaction. Network reachability to the WordPress site is the only precondition. The scope is changed, indicating that successful exploitation impacts resources beyond the vulnerable component itself.

Root Cause

The root cause is the failure to neutralize special SQL syntax elements in input passed to database queries [CWE-89]. Affected code paths likely concatenate untrusted parameters into SQL statements rather than using prepared statements with bound parameters or WordPress's $wpdb->prepare() API. This pattern enables attackers to break out of intended query context and append arbitrary SQL clauses.

Attack Vector

An attacker sends HTTP requests to a vulnerable endpoint exposed by the emerce-core plugin. The request includes payloads crafted to alter SQL query logic. Because output is not directly reflected, the attacker uses conditional responses or time delays to extract data one bit at a time. Refer to the Patchstack SQL Injection Advisory for additional technical details.

Detection Methods for CVE-2025-69366

Indicators of Compromise

HTTP requests to emerce-core plugin endpoints containing SQL keywords such as UNION, SLEEP(, BENCHMARK(, or ORDER BY
Unusual response time patterns consistent with time-based blind injection probes
Repeated requests with incrementing payload values targeting the same parameter
Web server access log entries with URL-encoded SQL meta-characters such as %27, %20OR%20, or --

Detection Strategies

Inspect web server and WordPress access logs for query strings containing SQL syntax against plugin endpoints
Deploy a web application firewall with signatures for blind SQL injection patterns
Correlate sequences of requests from a single source that exhibit binary search behavior typical of blind extraction
Monitor database query logs for unexpected SELECT patterns originating from plugin code paths

Monitoring Recommendations

Enable WordPress debug logging and review database error events related to malformed SQL
Alert on outbound traffic spikes from the WordPress host that may indicate data exfiltration following injection
Track CPU and database latency metrics for anomalies consistent with time-based payload execution

How to Mitigate CVE-2025-69366

Immediate Actions Required

Identify all WordPress sites running the Emerce Core plugin at version 1.8 or earlier
Disable or remove the emerce-core plugin until a patched version is available
Restrict administrative and plugin endpoints behind authentication or IP allowlisting where feasible
Review database audit logs for evidence of prior injection activity

Patch Information

As of the NVD publication, the advisory indicates the vulnerability affects Emerce Core through version 1.8. Consult the Patchstack SQL Injection Advisory for the current patched version and vendor remediation guidance. Apply the vendor-supplied update as soon as it is released.

Workarounds

Deploy a web application firewall with SQL injection rule sets in blocking mode in front of WordPress
Restrict access to the vulnerable plugin endpoints via web server rules until a patch is applied
Apply the principle of least privilege to the WordPress database user to limit data accessible through injection
Take a verified backup of the WordPress database and files before remediation

bash

# Example: temporarily block requests to the emerce-core plugin via nginx
location ~* /wp-content/plugins/emerce-core/ {
    deny all;
    return 403;
}