CVE-2026-49061: WPC Product Options WooCommerce Arbitrary File Download Vulnerability

Technical summary

CVE-2026-49061 is a path traversal vulnerability (CWE-22) in the WPC Product Options plugin for WooCommerce up to version 3.2.1. The vulnerability stems from insufficient input validation on file download functionality, permitting unauthenticated attackers to traverse the filesystem using relative or absolute path manipulation. The plugin likely constructs file paths based on user-supplied parameters without adequate sanitization or allowlisting, enabling access to files outside the intended download directory. The CVSS v3.1 score of 7.5 (HIGH) reflects the network-exploitable nature, low attack complexity, absence of authentication requirements, and the potential for confidentiality breach.

Business impact

Unauthorized file disclosure poses significant operational and compliance risks. Attackers may obtain sensitive intellectual property, customer data, API credentials, configuration secrets, or payment information stored on the server. For e-commerce businesses, this can lead to regulatory violations (GDPR, PCI-DSS compliance failures), reputational damage, customer trust erosion, and potential financial liability. The absence of authentication barriers lowers the threshold for exploitation, increasing the likelihood that the vulnerability will be discovered and abused if systems remain unpatched.

Affected systems

Any WordPress installation using WPC Product Options for WooCommerce plugin version 3.2.1 or earlier is vulnerable. Organizations should audit their WordPress plugin repositories and management dashboards to identify installed versions. Multisite installations and third-party managed WordPress hosting environments may face wider exposure if plugin updates are not centrally enforced.

Exploitability

This vulnerability exhibits high exploitability characteristics: it requires no authentication, no user interaction, and no special access privileges. An attacker can craft HTTP requests from any network location to probe for and retrieve files. The attack is likely straightforward to automate, making it an attractive target for reconnaissance and data exfiltration campaigns. However, exploitation success depends on the specific file paths targeted and server permissions; not all files may be readable through the vulnerable endpoint.

Remediation

Upgrade WPC Product Options for WooCommerce to a patched version released after 3.2.1. Consult the official WooCommerce plugin repository and vendor advisory for the recommended minimum version. Until patching is possible, restrict HTTP access to the vulnerable plugin's download endpoint using web application firewall rules or server-level access controls, and ensure comprehensive logging of file access attempts.

Patch guidance

Visit the WooCommerce plugin repository or the official WPC Plugins website to download and deploy the latest patched version. Test updates in a staging environment first to ensure compatibility with other plugins and themes. Verify against the vendor advisory that the deployed version contains the security fix. Automate plugin updates where feasible through WordPress management tools to prevent future patch delays.

Detection guidance

Monitor HTTP access logs for unusual requests to the WPC Product Options plugin directory, particularly those containing path traversal sequences (../, ..\ , or URL-encoded variants like %2e%2e%2f). Search for successful (HTTP 200) responses serving files outside the plugin's expected directories. Implement runtime detection within the plugin itself by logging file access operations and alerting on unexpected file paths. Consider using WordPress security plugins that monitor vulnerable plugin activity and flag exploitation attempts.

Why prioritize this

This vulnerability merits immediate attention due to its HIGH severity rating, unauthenticated nature, and low barrier to exploitation. File disclosure vulnerabilities frequently serve as the entry point for supply chain attacks and data exfiltration. WooCommerce plugins are widely deployed in e-commerce environments where customer and payment data is at risk. Early patching reduces window of exposure and limits reconnaissance opportunities for threat actors.

Risk score, explained

The CVSS v3.1 score of 7.5 reflects a network-accessible vulnerability with low attack complexity and no authentication requirement (AV:N/AC:L/PR:N/UI:N). The impact is confined to confidentiality breaches with no integrity or availability compromise (C:H/I:N/A:N). While the scope is unchanged (S:U), the combination of high exploitability and exposure of sensitive data justifies the HIGH severity classification and warrants prioritized remediation in most environments.

Frequently asked questions