CVE-2026-28167

Super Forms – Drag & Drop Form Builder <= 6.3.316 - Unauthenticated Arbitrary File Read

2026-08-24 07:47

Strategic Overview

Status: Patched in 6.3.317
Affected Plugin: Super Forms – Drag & Drop Form Builder
Affected Version: <= 6.3.316
CVSS: 7.5High
Weakness type: CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CVE: CVE-2026-28167

View all Super Forms – Drag & Drop Form Builder vulnerabilities

At a glance

CVE-2026-28167 is a high-severity Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in the Super Forms WordPress plugin, affecting versions <= 6.3.316. It carries a CVSS score of 7.5 (reachable over the network; low attack complexity; high confidentiality impact). Exploitation requires no authentication. The issue is fixed in version 6.3.317; sites on affected versions should update now. Disclosed August 2026, reported by VanTastic.

Vulnerability Overview

The Super Forms – Drag & Drop Form Builder plugin for WordPress is vulnerable to Arbitrary File Read in all versions up to, and including, 6.3.316. This is due to insufficient validation of a user supplied path. This makes it possible for unauthenticated attackers to read arbitrary files on the server, including sensitive configuration files.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site, and no interaction from a victim user. A successful exploit has high impact on confidentiality.

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Reaching this weakness in Super Forms <= 6.3.316 takes no account at all. Path traversal happens when user-controlled text is used to build a filesystem path without being constrained to an intended directory, so sequences like ../ walk the resolved path somewhere else.

Depending on the operation, it means reading files outside the intended folder — wp-config.php being the usual target — or writing to and deleting paths the web server can touch. For Super Forms the fix is 6.3.317: builds <= 6.3.316 are affected, anything from 6.3.317 onward is not.

Remediation

Update to version 6.3.317, or a newer patched version

How does WordSec protect against this?

Requests carrying this pattern arrive without a session, so nothing upstream of the firewall gets a chance to reject them: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Super Forms 6.3.317 closes this, and updating the plugin is the step that ends it.

Firewall
Login Security
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2026-28167 https://www.wordfence.com/threat-intel/vulnerabilities/id/8242b23f-bc2b-4d10-b323-641602539d4e https://nvd.nist.gov/vuln/detail/CVE-2026-28167

Related records

Other vulnerabilities in Super Forms – Drag & Drop Form Builder

CVSS Vector

7.5

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityNone
AvailabilityNone

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