CVE-2026-19860: CWE-73 External Control of File Name or Path in JetFormBuilder — Dynamic Blocks Form Builder
The JetFormBuilder — Dynamic Blocks Form Builder WordPress plugin before 3.6.5.3 does not sufficiently restrict which PHP functions can be used as a custom field-validation callback, relying on a blocklist that omits a file-deletion function, allowing users able to manage forms to cause arbitrary files on the server to be deleted. The deletion itself is carried out when the form is submitted, which requires no authentication.
AI Analysis
Technical Summary
The JetFormBuilder WordPress plugin before version 3.6.5.3 has a vulnerability classified as CWE-73 (External Control of File Name or Path). It does not properly restrict PHP functions usable as custom field-validation callbacks, missing a critical file-deletion function in its blocklist. This allows users able to manage forms to trigger arbitrary file deletions on the server upon form submission, which requires no authentication. The affected versions are >=3.5.6.2 and <3.6.5.3.
Potential Impact
An attacker with the ability to manage forms in the affected plugin versions can delete arbitrary files on the server without authentication. This could lead to denial of service or loss of critical files, impacting the availability and integrity of the affected system.
Mitigation Recommendations
No official patch or fix information is provided in the available data. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict form management permissions to trusted users only to mitigate risk.
CVE-2026-19860: CWE-73 External Control of File Name or Path in JetFormBuilder — Dynamic Blocks Form Builder
Description
The JetFormBuilder — Dynamic Blocks Form Builder WordPress plugin before 3.6.5.3 does not sufficiently restrict which PHP functions can be used as a custom field-validation callback, relying on a blocklist that omits a file-deletion function, allowing users able to manage forms to cause arbitrary files on the server to be deleted. The deletion itself is carried out when the form is submitted, which requires no authentication.
CVSS v3.1
Score 5.5medium
Affected software
JetFormBuilder — Dynamic Blocks Form Builder
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The JetFormBuilder WordPress plugin before version 3.6.5.3 has a vulnerability classified as CWE-73 (External Control of File Name or Path). It does not properly restrict PHP functions usable as custom field-validation callbacks, missing a critical file-deletion function in its blocklist. This allows users able to manage forms to trigger arbitrary file deletions on the server upon form submission, which requires no authentication. The affected versions are >=3.5.6.2 and <3.6.5.3.
Potential Impact
An attacker with the ability to manage forms in the affected plugin versions can delete arbitrary files on the server without authentication. This could lead to denial of service or loss of critical files, impacting the availability and integrity of the affected system.
Mitigation Recommendations
No official patch or fix information is provided in the available data. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict form management permissions to trusted users only to mitigate risk.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-08-14T10:00:56.687Z
- State
- PUBLISHED
Threat ID: 6aae2c6755bf5e2cf5363ad1
Added to database: 09/19/2026, 06:32:07 UTC
Last enriched: 09/19/2026, 06:47:33 UTC
Last updated: 09/20/2026, 02:58:02 UTC
Views: 6
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