CVE-2026-18442 wclovers CVE debrief

Who should care

Defenders responsible for WordPress installations using the WCFM Marketplace plugin should assess exposure and prioritize verification of their inventory. They should also check for potential SQL injection attempts and update to a fixed version of the plugin if available.

Why it matters

The SQL injection vulnerability in the WCFM Marketplace plugin for WordPress allows unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.

• Verify inventory of WordPress installations using the WCFM Marketplace plugin
• Check for potential SQL injection attempts
• Prioritize updating to a fixed version of the plugin if available

Technical summary

The WCFM Marketplace – Multivendor Marketplace for WooCommerce plugin for WordPress is vulnerable to generic SQL Injection via the 'wcfmmp_user_location_lng' parameter in all versions up to, and including, 3.8.2 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This vulnerability allows unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. Defenders should prioritize verifying the inventory of WordPress installations using the WCFM Marketplace plugin and checking for potential SQL injection attempts.

Defensive priority

Defenders should prioritize verifying the inventory of WordPress installations using the WCFM Marketplace plugin and checking for potential SQL injection attempts.

Recommended defensive actions

• Verify the inventory of WordPress installations using the WCFM Marketplace plugin
• Check for potential SQL injection attempts
• Update to a fixed version of the plugin if available
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance

Evidence notes

The CVE record and NVD entry provide details on the SQL injection vulnerability in the WCFM Marketplace plugin. The vulnerability allows unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. Defenders should verify the inventory of WordPress installations using the WCFM Marketplace plugin and check for potential SQL injection attempts.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.