Contact Form & Lead Form Elementor Builder < 1.6.4 - Unauthenticated Stored Cross-Site Scripting

published 2021-12-27 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-11879

cvss: 6.1; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.2%; EPSS 1.2% chance of exploitation in 30 days, percentile 68%
public exploits: 0; none known

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

Patch / fix

fixed in 1

themehunk contact_form_&_lead_form_elementor_builder 1.6.4

Exploit prediction

1.19% chance of exploitation in the next 30 days, higher than 68% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

wpscan.com https://wpscan.com/vulnerability/4e165122-4746-42de-952e-a3bf51393a74 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.1	6.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD	2.0	4.3	AV:N/AC:M/Au:N/C:N/I:P/A:N

Affected products

Unknown Contact Form & Lead Form Elementor Builder

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

Technology feeds

WordPress rss critical rss

References

wpscan.com /vulnerability/4e165122-4746-42de-952e-a3bf51393a74
exploit, third-party-advisory

Sources

CVE List CVE-2021-24967
NVD CVE-2021-24967

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary