CVE-2025-22639 Overview
CVE-2025-22639 is a Blind SQL Injection vulnerability in the Techspawn Distance Rate Shipping for WooCommerce plugin (distance-rate-shipping-for-woocommerce-pro). The flaw exists because user-supplied input is concatenated into SQL statements without proper neutralization of special elements [CWE-89]. All plugin versions up to and including 1.3.4 are affected. Authenticated attackers with low privileges can exploit the issue over the network to extract data from the WordPress database. The vulnerability has a scope change (S:C), meaning a successful exploit can affect resources beyond the vulnerable component itself.
Critical Impact
Authenticated attackers can perform Blind SQL Injection against WooCommerce stores running affected plugin versions, leading to confidentiality loss across the WordPress database.
Affected Products
- Techspawn Distance Rate Shipping for WooCommerce (distance-rate-shipping-for-woocommerce-pro)
- All versions from initial release through <= 1.3.4
- WordPress sites running WooCommerce with this shipping plugin installed
Discovery Timeline
- 2025-02-18 - CVE-2025-22639 published to NVD
- 2026-04-23 - Last updated in NVD database
Technical Details for CVE-2025-22639
Vulnerability Analysis
The plugin fails to sanitize or parameterize user-controllable input before incorporating it into SQL queries executed against the WordPress database. Because the application does not return SQL error output or query results directly, the flaw manifests as a Blind SQL Injection. Attackers infer database contents by observing differences in response content or timing between true and false conditional payloads. The CWE-89 classification confirms the root issue: improper neutralization of special SQL characters such as single quotes, comments, and statement terminators. Successful exploitation gives an attacker the ability to enumerate the wp_users table, extract password hashes, and read order or customer data managed by WooCommerce.
Root Cause
The vulnerable code paths concatenate request parameters directly into SQL strings rather than using prepared statements through $wpdb->prepare(). WordPress provides parameterized query helpers, but the plugin's database access functions bypass these safeguards for at least one input parameter handled by the shipping rate logic.
Attack Vector
Exploitation requires network access to the WordPress site and an authenticated session with low privileges. The attacker submits crafted parameters to a plugin endpoint that processes shipping rate data. Boolean-based or time-based blind payloads allow the attacker to extract arbitrary data character by character, even without visible query output.
No verified public exploit code is available. See the Patchstack advisory for additional context.
Detection Methods for CVE-2025-22639
Indicators of Compromise
- Web server access logs showing requests to plugin endpoints containing SQL metacharacters such as ', --, UNION, SLEEP(, or BENCHMARK(.
- Unusually long response times on plugin endpoints, indicative of time-based blind injection probes.
- Repeated authenticated requests from a single session iterating through parameter values.
- Unexpected reads against wp_users, wp_usermeta, or WooCommerce order tables in database audit logs.
Detection Strategies
- Deploy a web application firewall (WAF) ruleset that inspects POST and GET parameters bound for /wp-admin/admin-ajax.php and plugin-specific paths for SQL injection patterns.
- Enable MySQL or MariaDB general query logging on staging or canary nodes to identify queries containing concatenated user input.
- Correlate authentication events with subsequent anomalous query volume from the same WordPress user.
Monitoring Recommendations
- Alert on HTTP responses where latency exceeds a baseline threshold for plugin endpoints.
- Monitor for wp-login.php activity from low-privilege accounts followed by access to shipping plugin URLs.
- Track installed plugin versions across WordPress fleets and flag installations at or below 1.3.4.
How to Mitigate CVE-2025-22639
Immediate Actions Required
- Identify all WordPress instances running distance-rate-shipping-for-woocommerce-pro and inventory their versions.
- Update the plugin to a version newer than 1.3.4 as soon as the vendor publishes a patched release.
- Audit WordPress user accounts and revoke unnecessary low-privilege roles that could be leveraged for authenticated exploitation.
- Rotate WordPress secret keys in wp-config.php and reset passwords if exploitation is suspected.
Patch Information
Review the Patchstack vulnerability database entry for the latest patched version information from Techspawn. Apply the vendor update through the WordPress plugin manager or via wp-cli.
Workarounds
- Deactivate and remove the plugin until a patched version is installed.
- Place the WordPress admin area behind an IP allowlist or VPN to limit authenticated attacker reach.
- Deploy WAF signatures that block SQL injection payloads targeting plugin endpoints.
- Restrict database user privileges for the WordPress account to the minimum required by WooCommerce.
# Update the affected plugin using wp-cli once a patched version is published
wp plugin update distance-rate-shipping-for-woocommerce-pro
# Or temporarily disable the plugin as a workaround
wp plugin deactivate distance-rate-shipping-for-woocommerce-pro
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
