CVE-2021-24967: Contact Form & Lead Form Elementor Builder < 1.6.4 - Unauthenticated Stored Cross-Site Scripting

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.2% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2021-12-27 · updated 2026-06-17
Weakness: CWE-79

Description

The Contact Form & Lead Form Elementor Builder WordPress plugin before 1.6.4 does not sanitise and escape some lead values, which could allow unauthenticated users to perform Cross-Site Scripting attacks against logged in admin viewing the inserted Leads

Affected products

Contact Form & Lead Form Elementor Builder: before 1.6.4 — fixed in 1.6.4

How to fix

Upgrade to a fixed version: Contact Form & Lead Form Elementor Builder 1.6.4. Check the vendor advisory for mitigations.

References

https://wpscan.com/vulnerability/4e165122-4746-42de-952e-a3bf51393a74
https://wpscan.com/vulnerability/4e165122-4746-42de-952e-a3bf51393a74

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