What is CVE-2018-14430?

CVE-2018-14430 is a medium-severity vulnerability in Mondula Multi Step Form, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2018-07-25.

How severe is CVE-2018-14430?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Is CVE-2018-14430 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Mondula Multi Step Form

CVE-2018-14430

The Mondula Multi Step Form plugin through 1.2.5 for WordPress allows XSS via the fw_data [id][1], fw_data [id][2], fw_data [id][3], fw_data [id][4], or email field of the contact form, exploitable with an fw_send_email action to wp-admin/admin-ajax.php.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2018-07-25 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.013 (68.4th percentile), scored 2026-10-01.

Low probability of exploitation in the next 30 days, but still tracked. 68th percentile — 68.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000

Affected products

Mondula Multi Step Form

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

References

hackpuntes.com/cve-2018-14430-wordpress-plugin-multi-step-form-125-multiples-xs… (Exploit, Third Party Advisory, Issue Tracking)
wpvulndb.com/vulnerabilities/9106 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2018-14430?: CVE-2018-14430 is a medium-severity vulnerability in Mondula Multi Step Form, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2018-07-25.
How severe is CVE-2018-14430?: Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2018-14430 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.