The Contact Form 7 WordPress plugin before 5.9.5 has an open redirect that allows an attacker to utilize a false URL and redirect to the URL of their choosing. This vulnerability is classified as medium severity with a CVSS score of 6.1, indicating that while it is not critical, it could still pose a significant risk to users and organizations relying on this plugin.
Risk to organizations includes the potential for phishing attacks, as users can be redirected to malicious sites that may steal sensitive information or install malware. As attackers may leverage this vulnerability to redirect users without their consent, organizations should prioritize patching immediately.
Currently, there is no known exploit for this vulnerability, and it has not been categorized as actively exploited in the wild. However, due to the nature of open redirects, it is crucial for organizations to address this issue promptly to prevent possible exploitation.
Organizations should address this vulnerability in their priority patch cycle to safeguard their users and maintain trust.
Vulnerability Details
The vulnerability allows an attacker to redirect users to a malicious URL. The affected version is any version of Contact Form 7 prior to 5.9.5. The vulnerability is classified under CWE-601, which pertains to open redirects.
The CVSS score of 6.1 indicates a medium severity, with a low attack complexity and no privileges required. User interaction is required for the attack to be successful, as users must click the malicious link to be redirected.
The vulnerability was published on June 27, 2024, and has been modified since its initial disclosure.
Technical Analysis
The root cause of this vulnerability lies in the lack of validation for URLs that users can be redirected to. The attack vector is network-based, meaning that an attacker can exploit this vulnerability remotely.
The attack complexity is low, as it does not require any specialized skills or access. No privileges are required to exploit this vulnerability, but user interaction is needed to trigger the redirect.
The confidentiality and integrity impacts are low, as the main consequence is the redirection of users rather than direct data compromise. The availability impact is none.
Risk & Impact Analysis
Organizations using the Contact Form 7 plugin should consider the potential risks associated with the open redirect vulnerability. If exploited, attackers could redirect users to phishing sites, leading to data breaches or malware infections.
Given the CVSS score of 6.1, organizations should prioritize patching this vulnerability in their systems to minimize the risk of exploitation. The blast radius could be significant as it may affect any website that uses the vulnerable plugin, potentially impacting a large number of users.
Organizations should schedule remediation as part of their security maintenance practices to ensure continued protection against evolving threats.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The vulnerability affects all versions of the Contact Form 7 plugin prior to 5.9.5. Organizations using this plugin should ensure they update to the latest version to mitigate the risks associated with this vulnerability.
Mitigation & Remediation
Organizations should upgrade the Contact Form 7 plugin to version 5.9.5 or later to remediate this vulnerability. If an upgrade is not possible, consider implementing web application firewall rules to block potential exploit attempts.
Additionally, organizations should perform regular security assessments and consider engaging in penetration testing to identify similar weaknesses in their systems.
Detection Guidance
To detect potential exploitation attempts, organizations should monitor web server logs for unusual redirect patterns. Behavioral anomalies in user interactions with forms that utilize the Contact Form 7 plugin should also be flagged for review.
AppSecure Threat Intelligence Insight
This vulnerability highlights the importance of validating user input within web applications. Security teams should ensure that all user-facing features, including forms, implement proper URL validation to prevent open redirect vulnerabilities.
Organizations must adopt a proactive approach to vulnerability management, including regular updates and security audits. For deeper insights into best practices, consider reviewing our resources on vulnerability management programs and penetration testing methodology to enhance your security posture.
Lastly, organizations should remain vigilant regarding emerging threats and adapt their security strategies accordingly.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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