CVE-2026-32496 in Spam Protect for Contact Form 7 Plugin
Summary
by MITRE • 03/25/2026
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in NYSL Spam Protect for Contact Form 7 wp-contact-form-7-spam-blocker allows Path Traversal.This issue affects Spam Protect for Contact Form 7: from n/a through <= 1.2.9.
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Analysis
by VulDB Data Team • 04/01/2026
This vulnerability represents a critical path traversal flaw that exploits improper input validation within the NYSL Spam Protect for Contact Form 7 plugin. The weakness allows malicious actors to manipulate file paths and potentially access restricted directories on the web server. The vulnerability exists in the plugin's handling of user-supplied data during file operations, creating an opportunity for unauthorized access to sensitive system resources. This type of vulnerability falls under the common weakness enumeration CWE-22, which specifically addresses improper limitation of pathname to restricted directory scenarios. The attack vector leverages the plugin's failure to properly sanitize or validate file path inputs, enabling attackers to traverse directory structures beyond intended boundaries.
The technical implementation of this vulnerability occurs when the plugin processes form submissions and handles file operations without adequate validation of pathname components. Attackers can exploit this by crafting malicious input that includes directory traversal sequences such as ../ or ..\, which when processed by the vulnerable plugin, can lead to unauthorized file access or even remote code execution depending on the server configuration. The vulnerability affects all versions up to and including 1.2.9, indicating that the security flaw has persisted for an extended period without proper remediation. This represents a significant gap in the plugin's security architecture, as it fails to implement proper input sanitization and path validation mechanisms that should be standard practice in web application security.
The operational impact of this vulnerability extends beyond simple data access issues and can potentially lead to complete system compromise. An attacker who successfully exploits this path traversal vulnerability could access sensitive configuration files, database credentials, or even system files that contain critical information. The attack surface is particularly concerning given that Contact Form 7 is one of the most widely used contact form plugins for wordpress, making this vulnerability potentially exploitable across thousands of websites. This type of vulnerability aligns with the attack pattern described in the mitre attack framework under the technique of privilege escalation through path traversal. The vulnerability's persistence across multiple versions suggests inadequate security testing during development and release cycles.
Mitigation strategies for this vulnerability require immediate action from affected users, including updating to the latest plugin version where the issue has been resolved. System administrators should implement proper input validation at multiple levels, including application-level sanitization and server-level restrictions. The recommended approach includes implementing a whitelist-based validation system that only allows predetermined safe file paths and operations. Additionally, proper file access controls should be configured on the web server to limit the damage that could occur even if the vulnerability is exploited. Security monitoring should be enhanced to detect suspicious file access patterns, and the principle of least privilege should be enforced when configuring file permissions for the plugin's operation. Organizations should also consider implementing web application firewalls and intrusion detection systems to provide additional layers of protection against such path traversal attacks.