CVE-2025-52820 Overview
CVE-2025-52820 is a SQL injection vulnerability in the infosoftplugin WooCommerce Point Of Sale (POS) plugin for WordPress. The flaw stems from improper neutralization of special elements used in a SQL command [CWE-89]. Authenticated attackers with low privileges can inject arbitrary SQL statements through unsanitized parameters processed by the plugin. The vulnerability affects all versions of woo-point-of-salepos up to and including version 1.4. Successful exploitation allows attackers to read sensitive database contents and impact application availability across the WooCommerce store.
Critical Impact
Authenticated attackers can extract confidential data from the WordPress database, including customer records, order details, and credentials, leading to scope-changing compromise of the WooCommerce environment.
Affected Products
- WooCommerce Point Of Sale (POS) plugin (woo-point-of-salepos) versions up to and including 1.4
- WordPress installations running the infosoftplugin WooCommerce POS extension
- WooCommerce stores that expose POS functionality to authenticated users
Discovery Timeline
- 2025-08-14 - CVE-2025-52820 published to NVD
- 2026-04-23 - Last updated in NVD database
Technical Details for CVE-2025-52820
Vulnerability Analysis
The vulnerability resides in the WooCommerce Point Of Sale plugin's handling of user-supplied input passed to SQL queries. The plugin concatenates request parameters directly into database queries without parameterization or sanitization. An attacker authenticated with low privileges can submit crafted payloads through network requests to plugin endpoints. The injection triggers a scope change because the compromised query executes within the WordPress database context, exposing data beyond the plugin's intended boundary. The flaw has a network attack vector and requires no user interaction beyond the attacker's own session. According to EPSS data dated 2026-06-02, the exploitation probability sits at 0.063% in the 19.88 percentile.
Root Cause
The root cause is improper neutralization of special elements in SQL commands [CWE-89]. The plugin builds SQL statements through string concatenation using values from HTTP parameters. The code does not invoke $wpdb->prepare() with placeholders, nor does it apply esc_sql() to attacker-controlled input. As a result, characters such as single quotes, semicolons, and SQL keywords pass directly into the query parser.
Attack Vector
An authenticated attacker sends an HTTP request containing a malicious SQL payload to a vulnerable plugin endpoint. The injected payload modifies the original query, allowing UNION-based extraction, boolean-based blind retrieval, or time-based blind exfiltration of database rows. Because the attack is network-reachable and requires only low privileges, any user account with access to the POS interface can attempt exploitation. No verified public exploit is currently available, and the vulnerability is not listed in the CISA KEV catalog. See the Patchstack Vulnerability Report for additional technical context.
Detection Methods for CVE-2025-52820
Indicators of Compromise
- Unexpected SQL syntax characters (', --, UNION, SLEEP() appearing in HTTP request parameters to /wp-admin/admin-ajax.php or POS plugin endpoints
- Abnormally long response times on POS-related requests, indicating possible time-based blind injection
- Unexplained read activity against wp_users, wp_usermeta, or WooCommerce order tables originating from the web application user
- New or modified administrator accounts following authenticated access to the POS interface
Detection Strategies
- Inspect web server access logs for query strings containing SQL metacharacters directed at woo-point-of-salepos paths
- Enable WordPress database query logging and alert on multi-statement queries or unusual INFORMATION_SCHEMA lookups
- Deploy a web application firewall (WAF) rule set tuned for SQL injection signatures targeting WordPress plugins
Monitoring Recommendations
- Forward WordPress, PHP, and MySQL logs to a centralized SIEM for correlation against plugin endpoints
- Baseline normal POS user query patterns and alert on deviations in query volume or table access
- Track plugin version inventory across all WordPress instances to confirm patched state
How to Mitigate CVE-2025-52820
Immediate Actions Required
- Identify all WordPress sites running the woo-point-of-salepos plugin at version 1.4 or earlier
- Restrict access to POS functionality to trusted authenticated users only, pending a vendor patch
- Place the affected WordPress instances behind a WAF with active SQL injection rule enforcement
- Audit recent database query logs for evidence of prior exploitation attempts
Patch Information
At the time of NVD publication, no fixed version beyond 1.4 was referenced in the advisory. Administrators should monitor the Patchstack Vulnerability Report and the infosoftplugin vendor channels for an updated release that addresses the SQL injection flaw.
Workarounds
- Deactivate and remove the WooCommerce Point Of Sale plugin until a fixed version is released
- Revoke POS access from low-privileged user roles and limit usage to administrators on isolated networks
- Apply virtual patching at the WAF layer with rules blocking SQL metacharacters in POS plugin parameters
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
