Critical severity · published Oct 2, 2026
CVE-2026-15896
Super Forms <= 6.3.316 - Unauthenticated Path Traversal to Arbitrary File Read via 'sfgtfi' URL Path Parameter
9.1
CVSS
0.9%
EPSS
No
On KEV
Description
The Super Forms – Drag & Drop Form Builder plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 6.3.316 via the parse_request function. This makes it possible for unauthenticated attackers to read the contents of arbitrary files on the server, which can contain sensitive information. The optional 'file_upload_auth' setting defaults to empty, meaning no authentication is required in the default configuration; enabling this setting mitigates unauthenticated exploitation but does not remediate the path traversal itself. Exploitation on Linux requires a real 13-digit timestamp directory to exist, whereas on Windows the traversal works with any hardcoded 13-digit prefix. However, the plugin's file upload response returns the name of the created directory, which means the vulnerability is exploitable as long as file upload is enabled on the form.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 59% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SF
Super Forms – Drag & Drop Form Builder · WebRehab
through 6.3.316 · source: vendor
Affected product
SF
Super Forms – Drag & Drop Form Builder
WebRehab
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-15896
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-15896
www.wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/dc3df045-1020-403f-8e10-a1b75261b769?source=cve
github.com
https://github.com/RensTillmann/super-forms/pull/205
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