Super Forms <= 6.3.316 — Unauthenticated Arbitrary Directory Deletion via 'data[...][files][][subdir]' Parameter
CVE-2026-17609Published · Updated Action summary
Affected: ≤6.3.316Update to 6.3.317 or newer
All remediation steps- Severity
- Critical9.1
- CVSS
- 9.1CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:HWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:NPrivileges required- None
UI:NUser interaction- None
S:UScope- Unchanged
C:NConfidentiality- None
I:HIntegrity- High
A:HAvailability- High
- Weakness
- CWE-434 Arbitrary File Upload
- Required access
- No account needed
- Exploit prediction (EPSS)
- 0.3% chance in 30 days24th percentile
- CISA KEV
- Not listed
On this page8
Am I affected?
Super Forms – Drag & Drop Form Builder super-forms
- Affected≤ 6.3.316
- Patched in6.3.317
Update to 6.3.317 or newer.
You are affected if you run ≤ 6.3.316. Version 6.3.317 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Super Forms – Drag & Drop Form Builder.
- No admin access? Run a passive check of your site. It reads public files only.
- No account is needed to exploit this. Treat any exposed site on an affected version as at risk.
What to do
- Update to version 6.3.317, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch Super Forms – Drag & Drop Form Builder to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to d.v4n_s3c.
The Super Forms – Drag & Drop Form Builder plugin for WordPress is vulnerable to Arbitrary Directory Deletion in all versions up to, and including, 6.3.316 via the submit_form function. This is due to insufficient validation of attacker-controlled JSON field declarations against the actual form schema, combined with a non-effective ABSPATH guard that dirname() trivially bypasses by stripping the trailing slash. This makes it possible for unauthenticated attackers to recursively delete arbitrary directories on the server, including the WordPress root directory. Exploitation requires that an administrator has enabled the 'Delete files from server after form submissions' setting, though this is a documented and commonly-enabled feature.
Exploits & references
Proof-of-concept & detection
No public proof-of-concept or detection template is known for this vulnerability.
Advisories & patches
- Advisorywordfence.com
Related CVEs
More in Super Forms – Drag & Drop Form Builder
All 10| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| High8.8 | Authenticated (Subscriber+) Arbitrary File Upload via 'extensions' Form Element Attribute ≤6.3.316Update to 6.3.317 | CVE-2026-17196 | |
| High8.8 | Authenticated (Subscriber+) Privilege Escalation via 'user_id' Parameter in Register & Login ≤6.3.316Update to 6.3.317 | CVE-2026-15897 | |
| Critical9.1 | Unauthenticated Path Traversal to Arbitrary File Read via 'sfgtfi' URL Path Parameter ≤6.3.316Update to 6.3.317 | CVE-2026-15896 | |
| High8.1 | Authenticated (Subscriber+) Arbitrary File/Directory Deletion via 'subdir' / 'path' Parameter ≤6.3.316Update to 6.3.317 | CVE-2026-15983 | |
| Critical9.8 | Unauthenticated Privilege Escalation via 'role' Parameter ≤6.3.316Update to 6.3.317 | CVE-2026-15989 |
- High8.8Authenticated (Subscriber+) Arbitrary File Upload via 'extensions' Form Element Attribute
≤6.3.316Update to 6.3.317
- High8.8Authenticated (Subscriber+) Privilege Escalation via 'user_id' Parameter in Register & Login
≤6.3.316Update to 6.3.317
- Critical9.1Unauthenticated Path Traversal to Arbitrary File Read via 'sfgtfi' URL Path Parameter
≤6.3.316Update to 6.3.317
- High8.1Authenticated (Subscriber+) Arbitrary File/Directory Deletion via 'subdir' / 'path' Parameter
≤6.3.316Update to 6.3.317
- Critical9.8Unauthenticated Privilege Escalation via 'role' Parameter
≤6.3.316Update to 6.3.317
Same weakness (Arbitrary File Upload)
All Arbitrary File Upload| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| High7.2 | Unauthenticated Stored Cross-Site Scripting via Comment User-Agent Header | CVE-2026-120688 | |
| Critical9.8 | Unauthenticated Arbitrary File Upload via File Upload via Public Form Submission | CVE-2026-125055 | |
| Critical9.8 | Unauthenticated PHP Object Injection to Remote Code Execution via 'form' Parameter | CVE-2026-119077 | |
| Medium5.3 | Unauthenticated Sensitive Information Exposure in 'search' Parameter | CVE-2026-121518 |
- High7.2Unauthenticated Stored Cross-Site Scripting via Comment User-Agent Header
EZ SQL Reports Shortcode Widget and DB Backup
≤5.25.25Update to 5.26.45
- Critical9.8Unauthenticated Arbitrary File Upload via File Upload via Public Form Submission
Chatterbug Forms – Fast, Flexible WordPress Form Builder
≤1.0.2Update to 1.1
- Critical9.8Unauthenticated PHP Object Injection to Remote Code Execution via 'form' Parameter
ELEX WordPress HelpDesk & Customer Ticketing System
≤3.3.9Update to 3.4.0
- Medium5.3Unauthenticated Sensitive Information Exposure in 'search' Parameter
Customer Reviews for WooCommerce
≤5.127.0Update to 5.128.0
Timeline
CVE published
Severity critical, CVSS 9.1
Record last updated
Sources & licenses
Wordfence record- Vulnerability data
- Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. Licensed under the CC BY-SA 4.0.
- CVE® identifiers
- Copyright 1999-2026 The MITRE Corporation. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
- CVSS / CWE
- National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
- EPSS
- Exploit Prediction Scoring System by FIRST.org.
- VulnCrest content
- Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.