CVE-2026-9662: Recover Exit WooCommerce Plugin LFI Vulnerability – Critical Path Traversal Risk

Technical summary

CVE-2026-9662 is a Local File Inclusion (LFI) vulnerability in the Recover Exit For WooCommerce plugin affecting versions up to 1.0.3. The vulnerability exists in the `recover_exit()` function, which accepts an unsanitized POST parameter named `tpf` and passes it directly into a PHP `include()` statement. Because the parameter lacks input validation and path normalization, an unauthenticated attacker can inject directory traversal sequences (e.g., `../`) to escape the intended directory and load arbitrary PHP files from the server filesystem. In certain configurations—such as when combined with file upload functionality, log files, or other writable locations—this can escalate to remote code execution.

Business impact

WordPress sites running this plugin face direct exposure of sensitive files including database credentials, configuration secrets, and plugin/theme source code. In multi-tenant or complex hosting environments, attackers may read files belonging to other applications. The unauthenticated nature of the vulnerability means no valid user account is required; the attack surface encompasses all site visitors. If code execution is achievable through the deployment chain, attackers gain server-level compromise, leading to data theft, malware installation, ransomware deployment, and complete site takeover.

Affected systems

Any WordPress installation running the Recover Exit For WooCommerce plugin in version 1.0.3 or earlier is vulnerable. The plugin name and affected version range should be verified in your WordPress plugin directory scan. No other WooCommerce components or WordPress core versions are directly implicated; the risk is isolated to this specific plugin.

Exploitability

The vulnerability is exploitable by unauthenticated attackers over the network. The CVSS vector (AC:H) indicates some attack complexity—likely due to the need for specific deployment conditions to achieve code execution—but the underlying LFI is trivial to trigger. Proof-of-concept exploitation can be constructed without specialized tools. Public awareness of this class of vulnerability is high, and exploitation tooling for LFI against WordPress plugins is mature.

Remediation

Update the Recover Exit For WooCommerce plugin to a version released after 1.0.3 that includes input validation and sanitization of the `tpf` parameter. Verify the patch against the vendor's official advisory. As an interim measure, disable the plugin entirely if an immediate patch is unavailable. Additionally, restrict direct HTTP POST access to the vulnerable endpoint using web application firewall rules if patching cannot be deployed immediately.

Patch guidance

Contact or check the official Recover Exit For WooCommerce plugin repository or vendor website for a patch version that remediates CVE-2026-9662. Update via the WordPress admin dashboard once a patched version is available. Before applying any update, back up your WordPress database and configuration files. Test the update on a staging environment if feasible to ensure compatibility with your theme and other plugins.

Detection guidance

Monitor web server and WordPress logs for POST requests to your WordPress installation containing the parameter `tpf` with suspicious values (especially sequences like `../`, `..\`, or encoded variants). Implement Web Application Firewall rules to block or flag requests where `tpf` contains path traversal sequences. Use WordPress security scanning tools (such as Wordfence or Sucuri) to identify installations of this plugin and their versions. Endpoint Detection and Response (EDR) solutions should flag unexpected file reads from PHP processes originating from web server contexts.

Why prioritize this

This vulnerability scores HIGH (CVSS 8.1) and warrants immediate attention due to its combination of network accessibility, lack of authentication requirements, and potential for both confidentiality and integrity impact. While code execution requires specific conditions, the baseline LFI threat is immediate and can expose critical secrets. Organizations running WordPress with this plugin should prioritize patching within their next maintenance window, ideally within 24–48 hours.

Risk score, explained

The CVSS 3.1 score of 8.1 reflects a HIGH severity vulnerability with these factors: Network vector (AV:N) allows remote exploitation; no authentication required (PR:N); attack complexity is High (AC:H), reflecting the conditional nature of achieving code execution; the impact is Confidentiality, Integrity, and Availability all compromised (C:H/I:H/A:H). The score balances the trivial-to-exploit LFI with the elevated requirements for full system compromise.

Frequently asked questions