Overview
The CVE-2025-39451 is a critical cybersecurity vulnerability that affects the Crocoblock JetBlocks for Elementor plugin. This vulnerability, classified as a Missing Authorization flaw, can allow malicious actors to access functionalities that are not properly constrained by Access Control Lists (ACLs). Such a vulnerability could potentially compromise systems or leak sensitive data, posing a significant risk to websites using affected versions of the plugin.
Vulnerability Summary
CVE ID: CVE-2025-39451
Severity: High (7.5 CVSS Score)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage
Affected Products
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Product | Affected Versions
Crocoblock JetBlocks For Elementor | n/a – 1.3.16
How the Exploit Works
The CVE-2025-39451 vulnerability is caused by an oversight in the authorization process of the Crocoblock JetBlocks for Elementor plugin. This allows malicious users to bypass the ACLs and gain unauthorized access to certain functionalities. They can then manipulate these functionalities to compromise the system or extract sensitive data.
Conceptual Example Code
An attacker might exploit this vulnerability by sending a malicious HTTP request to the vulnerable endpoint, as demonstrated in the conceptual example below:
POST /vulnerable/endpoint HTTP/1.1
Host: target.example.com
Content-Type: application/json
{ "malicious_payload": "bypass_acl" }In the above example, “bypass_acl” is a placeholder for a real exploit code that manipulates the vulnerable functionality.
Mitigation Guidance
Users are strongly encouraged to apply the vendor patch as soon as it becomes available. In the meantime, using a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) can provide temporary mitigation against potential exploits.
