CVE-2026-14894Network attack vector

Unauthenticated code execution via unchecked upload filename

Published Jul 10, 2026 · Updated Jul 10, 2026

Arbitrary file upload in WebRehab Super Forms 6.3.313 and earlier allows remote attackers to write executable files through a form submission. In submit_form's PDF branch, datauristring bytes were written under the supplied value filename without type validation or path containment. Any unauthenticated visitor can obtain the required sf_nonce and session cookie, then upload executable content and run it under the web server account.

CVSS severity9.8
Critical
EPSS probability5.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Arbitrary file upload in WebRehab Super Forms 6.3.313 and earlier allows remote attackers to write executable files through a form submission. In submit_form's PDF branch, datauristring bytes were written under the supplied value filename without type validation or path containment. Any unauthenticated visitor can obtain the required sf_nonce and session cookie, then upload executable content and run it under the web server account.

The record

CVE
CVE-2026-14894
Published
Jul 10, 2026
Updated
Jul 10, 2026
Vendor
Rens Tillmann
Product
Super Forms
Classifications
CWE-434, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 10, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=6.3.313

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Rens Tillmann · Super Formsversion=0 <=6.3.313

Published CVSS scores

9.8WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo