Contact Form Builder: Filesystem traversal

Contact Form Builder is affected by filesystem traversal. Exposure depends on how the affected operation is made reachable by the site. A crafted path can escape the intended directory and reach files or directories elsewhere on the server.

CVE / CNA score 8.8 CVSS · cve@mitre.org

NVD score 8.8 CVSS 3.1 · nvd@nist.gov

Component: Contact Form Builder
Plugin slug: contact-form-builder
Affected: See vendor advisory
Safe version: See mitigation notes
Published: Apr 26, 2019
Weakness: CWE-22 — Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-352 — Cross-Site Request Forgery (CSRF)

This CVE was published Apr 26, 2019 and is one of 6 known issues for this plugin.

What to do

Update, patch or deactivate.

Update Contact Form Builder to a release outside the affected range, or disable and remove it until a fixed version is available.

No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Source record

Technical description

The WebDorado Contact Form Builder plugin before 1.0.69 for WordPress allows CSRF via the wp-admin/admin-ajax.php action parameter, with resultant local file inclusion via directory traversal, because there can be a discrepancy between the $_POST['action'] value and the $_GET['action'] value, and the latter is unsanitized.

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

References

Update, patch or deactivate.

Technical description

Primary and upstream sources