What is CVE-2022-0591?

CVE-2022-0591 is a critical-severity vulnerability in Subtlewebinc Formcraft3, classified under Server-Side Request Forgery (SSRF). CVSS score: 9.1/10. Published 2022-03-21.

How severe is CVE-2022-0591?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Is CVE-2022-0591 known to be exploited?

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

SSRF in Subtlewebinc Formcraft3

CVE-2022-0591

The FormCraft WordPress plugin before 3.8.28 does not validate the URL parameter in the formcraft3_get AJAX action, leading to SSRF issues exploitable by unauthenticated users

Vulnerability class: SSRF (Server-Side Request Forgery)

Published 2022-03-21 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

EPSS exploit prediction

EPSS: 0.202 (97.4th percentile), scored 2026-10-03.

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 97.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.202 · newest: 0.202 · change: 0.000

Affected products

Subtlewebinc Formcraft3
Formcraft — versions 3.8.28

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

Public proof-of-concept exploits

References

wpscan.com/vulnerability/b5303e63-d640-4178-9237-d0f524b13d47 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2022-0591?: CVE-2022-0591 is a critical-severity vulnerability in Subtlewebinc Formcraft3, classified under Server-Side Request Forgery (SSRF). CVSS score: 9.1/10. Published 2022-03-21.
How severe is CVE-2022-0591?: Critical severity. CVSS v3 base score is 9.1 out of 10.
Is CVE-2022-0591 known to be exploited?: 6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.