CVE-2025-63056 is a security vulnerability identified in the Contact Form by BestWebSoft plugin, affecting versions up to and including 4.3.5. The core issue is a missing authorization check, which means the plugin fails to properly verify whether a user has the necessary permissions before allowing certain actions. This results from incorrectly configured access control security levels within the plugin’s code. An attacker exploiting this vulnerability could perform unauthorized operations, potentially including submitting or manipulating contact form data, accessing sensitive information, or triggering unintended plugin behaviors. The vulnerability does not require authentication or user interaction, increasing its risk profile. Although no public exploits have been reported yet, the widespread use of WordPress and the popularity of BestWebSoft plugins make this a significant concern. The lack of a CVSS score means severity must be inferred from the nature of the flaw: missing authorization is a critical security failure that can lead to privilege escalation or data exposure. The vulnerability was reserved in late October 2025 and published in December 2025, indicating recent discovery and disclosure. No official patches or mitigation links are currently provided, emphasizing the need for proactive defensive measures by administrators.

For European organizations, the impact of CVE-2025-63056 can be substantial, especially for those relying on WordPress websites with the Contact Form by BestWebSoft plugin installed. Unauthorized access to contact form functionality could lead to data leakage, manipulation of user-submitted information, or unauthorized actions that compromise website integrity. This can result in reputational damage, regulatory non-compliance (notably under GDPR if personal data is exposed), and potential service disruptions. Attackers might leverage this vulnerability to inject malicious content or escalate privileges within the web environment, increasing the risk of further compromise. Given the plugin’s role in handling user communications, exploitation could also facilitate phishing or social engineering attacks targeting the organization’s stakeholders. The absence of known exploits currently reduces immediate risk but does not eliminate the threat, as attackers often develop exploits rapidly after disclosure. European entities with high web presence or those in regulated sectors such as finance, healthcare, or government are particularly vulnerable to the consequences of unauthorized access and data breaches stemming from this flaw.

1. Immediately audit WordPress sites to identify installations of the Contact Form by BestWebSoft plugin, specifically versions up to 4.3.5. 2. Restrict access to plugin-related endpoints and administrative interfaces using web application firewalls (WAFs) or server-level access controls to limit exposure. 3. Monitor web server and application logs for unusual or unauthorized requests targeting the contact form plugin. 4. Disable or remove the plugin temporarily if patching is not yet available and the contact form functionality is not critical. 5. Follow BestWebSoft’s official channels for patch releases and apply updates promptly once available. 6. Implement strict input validation and output encoding on contact form data to reduce the risk of injection attacks if exploitation occurs. 7. Educate website administrators about the risks of missing authorization vulnerabilities and encourage regular security reviews of plugins and themes. 8. Consider deploying security plugins that can detect and block unauthorized access attempts or anomalous behavior related to contact forms. 9. Backup website data regularly to enable quick recovery in case of compromise. 10. Evaluate alternative contact form solutions with robust security track records if the plugin remains unpatched for an extended period.