CVE-2022-0591: The FormCraft WordPress plugin before 3.8.28 does not validate the URL parameter in the formcraft3_get AJAX ac

Q: How do I fix CVE-2022-0591?

formcraft3: upgrade to 3.8.28. Exact commands for each OS are on this page.

Q: Is CVE-2022-0591 being exploited?

CVE-2022-0591 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2022-0591 affect?

CVE-2022-0591 affects formcraft3. Severity is critical (CVSS 9.1). 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

Q: How urgent is CVE-2022-0591?

Priority 66/100. Critical severity; EPSS top 3%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

This week

CRITICAL 9.1REMOTEUPGRADE

CVE-2022-0591 is a critical-severity flaw (CVSS 9.1) affecting formcraft3. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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

Why this priority

Critical severity
EPSS top 3%: very likely to be exploited
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.1 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	20.2% (top 3%)
CISA exploited list	No
Weakness	CWE-918
Published	2022-03-21
Last modified	2026-06-17

Publisher (CNA): WPScan · Vendor: subtlewebinc

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2022-03-21 19:15 UTCPublished CVE record published
2026-06-17 04:20 UTCUpdated Record last modified

subtlewebinc formcraft3 UPGRADE

Affected: < 3.8.28

Fixed in: 3.8.28

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy formcraft3 || rpm -q formcraft3 || formcraft3 --version

2. UPGRADE to 3.8.28 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade formcraft3

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade formcraft3

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Nuclei scan template: Formcraft3 <3.8.28 - Server-Side Request Forgery

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2022-0591?

formcraft3: upgrade to 3.8.28. Exact commands for each OS are on this page.

Is CVE-2022-0591 being exploited?

CVE-2022-0591 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2022-0591 affect?

CVE-2022-0591 affects formcraft3. Severity is critical (CVSS 9.1). 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

How urgent is CVE-2022-0591?

Priority 66/100. Critical severity; EPSS top 3%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

WordPress vulnerabilities

References

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