Privilege Escalation Vulnerability in JetFormBuilder Plugin for WordPress

CVE-2026-12793

What is CVE-2026-12793?

CVE-2026-12793 is a privilege escalation vulnerability found in the JetFormBuilder Plugin for WordPress, specifically affecting versions up to and including 3.6.2. The JetFormBuilder is a dynamic blocks form builder aimed at enhancing user interaction on WordPress sites by allowing the creation and management of forms. This particular vulnerability arises from the plugin’s failure to properly validate submitted form IDs, which permits unauthenticated users to manipulate the reference post's content and execute specific server-side callbacks. This security flaw is especially dangerous as it enables malicious actors to create new user accounts with administrator privileges, potentially leading to unauthorized access and control over the WordPress site.

Potential impact of CVE-2026-12793

1. Unauthorized Administrative Access: The primary risk posed by this vulnerability is the ability for unauthenticated attackers to gain administrative access to the affected WordPress site. This level of access allows attackers to modify site content, manage user accounts, and change site settings, leading to a full compromise of the website.

2. Data Breach Risks: With elevated privileges granted to unauthorized users, sensitive information stored on the WordPress site, including personal data of users and proprietary content, becomes susceptible to theft or manipulation. Such breaches can lead to severe legal and financial repercussions for organizations failing to protect their data.

3. Increased Attack Surface: Once an attacker gains administrative access through this vulnerability, they can deploy additional malicious plugins or scripts, further compromising the site’s security and potentially using it as a launching point for attacks on other connected systems or networks. This not only endangers the primary site but also increases risks for users interacting with it.

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