CVE-2022-0591
Published: 21 March 2022
Summary
CVE-2022-0591 is a critical-severity SSRF (CWE-918) vulnerability in Subtlewebinc Formcraft3. Its CVSS base score is 9.1 (Critical).
Operationally, ranked in the top 0.5% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
The FormCraft WordPress plugin before version 3.8.28 contains a Server-Side Request Forgery vulnerability (CWE-918) because the formcraft3_get AJAX action fails to validate the URL parameter. This affects any site running the vulnerable plugin and carries a CVSS 3.1 score of 9.1 reflecting network-accessible attack conditions with no required authentication or user interaction.
Unauthenticated attackers can supply an arbitrary URL to the AJAX endpoint and cause the server to issue requests to internal or external resources, resulting in high impact to confidentiality and integrity.
Public advisories published by WPScan document the issue and are available at the referenced URL. The associated EPSS score remains near its observed peak of 0.8831 with a current value of 0.8790.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-15698
Vulnerability details
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
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Penetration testing attempts server-side requests to internal resources, identifying SSRF weaknesses for remediation.
Outbound connections to external resources can be monitored and limited at the boundary, reducing SSRF impact.
Validates server-side URLs and resource references to block SSRF attempts.
Detects server-side request forgery through monitoring of unexpected outbound connections.