CVE-2026-14894
CWE-434Published: July 10, 2026· Updated: Jul 10, 2026
Official Description
The Super Forms – Drag & Drop Form Builder plugin for WordPress is vulnerable to Arbitrary File Upload in all versions up to, and including, 6.3.313 via the submit_form function. This is due to missing file type validation and the absence of any capability check on the submit_form nopriv AJAX handler, whose only barrier is a session nonce freely obtainable by unauthenticated visitors via a separate nopriv endpoint. This makes it possible for unauthenticated attackers to upload files that may be executable, which makes remote code execution possible. The nonce requirement is trivially bypassed because the super_create_nonce nopriv AJAX action allows any unauthenticated visitor to mint a valid sf_nonce and session cookie in a single prior request, reducing exploitation to two unauthenticated HTTP requests.
Risk Analysis
This critical arbitrary file upload vulnerability in the Super Forms – Drag & Drop Form Builder plugin for WordPress allows unauthenticated attackers to upload executable files, leading to potential remote code execution. With a CVSS score of 9.8, this flaw presents an extreme risk. The lack of an EPSS score means the exploitation likelihood is not yet quantified, but the severity is very high.
No public exploit is currently known for this vulnerability. The flaw is remotely exploitable over the network with low attack complexity and requires no user interaction or privileges, as the nonce requirement can be trivially bypassed.
Update the Super Forms – Drag & Drop Form Builder plugin to a version beyond 6.3.313. Ensure that all file upload functionalities have robust file type validation and strict capability checks to prevent unauthorized file uploads.
Technical Analysis
CVE-2026-14894 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.
CISA has added CVE-2026-14894 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
All References (2)
Quick Facts
Related CVEs (CWE-434)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2026-14894 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
- !CISA KEV: Federal agencies must patch per BOD 22-01 timeline
- !Active exploitation confirmed — treat as P1