CVE-2026-57633: WCBoost Products Compare Unauthenticated Data Exposure (CVSS 5.3)

Technical summary

CVE-2026-57633 is an unauthenticated sensitive data exposure vulnerability in WCBoost – Products Compare (≤1.1.0), caused by insufficient access controls (CWE-497). The plugin fails to enforce authentication checks on endpoints or data retrieval mechanisms, allowing network-based attackers to read sensitive information without credentials. The CVSS 3.1 score of 5.3 (MEDIUM) reflects low confidentiality impact, no integrity risk, and no availability impact.

Business impact

Sites using vulnerable WCBoost – Products Compare versions risk unauthorized disclosure of product or comparison data, customer lists, pricing information, or other sensitive commercial data. While not a direct revenue threat, exposed competitive intelligence or customer details can harm business relationships and customer trust. The impact scales with the sensitivity of data exposed through the plugin's functionality.

Affected systems

Any WordPress installation running WCBoost – Products Compare version 1.1.0 or earlier is affected. This plugin is typically used by e-commerce and product comparison sites. No specific WordPress or WooCommerce version constraints are known from the CVE record; verify plugin compatibility with your environment and catalog all instances in your estate.

Exploitability

Exploitation requires no authentication, privileges, or user interaction, and can occur over the network. The attack vector is straightforward: an attacker can directly request sensitive data endpoints without credentials. However, the vulnerability is not listed on CISA's Known Exploited Vulnerabilities (KEV) catalog, suggesting no observed active exploitation in the wild as of the publication date. This does not guarantee lower risk; opportunistic scanning and exploitation remain possible.

Remediation

Update WCBoost – Products Compare to a version newer than 1.1.0 as soon as it becomes available. Verify the patched version on the plugin vendor's repository or release notes. As an interim measure, restrict access to the plugin's endpoints using a web application firewall (WAF) or .htaccess rules if you cannot update immediately. Review access logs for evidence of unauthorized data requests.

Patch guidance

Monitor the WCBoost plugin vendor's official release channels and WordPress.org plugin repository for a patched version addressing CWE-497 access control issues. When a patch is released, test in a staging environment to ensure compatibility with your WordPress version, active plugins, and theme. Apply the update promptly to all affected instances. Document the patch version deployed for audit compliance.

Detection guidance

Monitor web server and application logs for unauthenticated requests to product comparison endpoints or data retrieval URLs associated with the WCBoost plugin. Look for patterns of repeated requests to sensitive paths or unusual query parameters. Implement intrusion detection rules to flag unauthenticated access attempts to plugin-specific endpoints. Conduct a content audit to determine what sensitive data the plugin exposes and whether it has been accessed without authorization.

Why prioritize this

Prioritize this vulnerability for patching because it combines unauthenticated network access with sensitive data exposure. Although the CVSS score is MEDIUM and no active exploitation is known, the ease of exploitation and the prevalence of WordPress sites make this a practical target for data-harvesting attacks. Organizations handling competitive data, customer lists, or pricing information should treat this as higher priority.

Risk score, explained

The CVSS 3.1 score of 5.3 (MEDIUM) reflects a low-complexity, unauthenticated network attack that compromises confidentiality but does not alter or disable systems. The score does not account for widespread plugin adoption or remediation difficulty, which may warrant higher internal prioritization. Organizations should adjust risk based on the sensitivity of data exposed and the number of affected instances in their infrastructure.

Frequently asked questions