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CVE-2024-12878 PoC — Custom Block Builder – Lazy Blocks < 3.8.3 - Reflected XSS

Source
https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2024/CVE-2024-12878.yaml
Associated Vulnerability
Title:Custom Block Builder – Lazy Blocks < 3.8.3 - Reflected XSS (CVE-2024-12878)
Description:The Custom Block Builder WordPress plugin before 3.8.3 does not sanitise and escape a parameter before outputting it back in the page, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin.
Description
Custom Block Builder WordPress plugin < 3.8.3 contains a reflected cross-site scripting caused by lack of sanitization and escaping of a parameter before output, letting attackers execute malicious scripts in high privilege users' browsers, exploit requires victim to load malicious page.
File Snapshot

 id: CVE-2024-12878

info:
  name: Lazy Blocks <= 3.8.2 - Cross-Site Scripting
  author: Shivam Kambo

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