Contact Form by Bit Form: Multi Step Form, Calculation Contact Form, Payment Contact Form & Custom Contact Form builder 2.0 - 2.13.9 - Authenticated (Administrator+) Arbitrary File Read And Deletion
Strategic Overview
- Status
- Patched in 2.13.10
- Affected Plugin
- Bit Form – Contact Form, Payment Forms, Multi Step Forms, Calculator & Custom Form Builder
- Affected Version
2.0 – 2.13.9- CVSS
- 9.0Critical
- Weakness type
- CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
- CVE
CVE-2024-7777
At a glance
CVE-2024-7777 is a critical-severity Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in the Bit Form WordPress plugin, affecting versions 2.0 – 2.13.9. It carries a CVSS score of 9.0 (reachable over the network; low attack complexity; high integrity, availability impact). Exploitation requires an authenticated account at Administrator level or above. The issue is fixed in version 2.13.10; sites on affected versions should update now. Disclosed August 2024, reported by TANG Cheuk Hei (siunam).
Vulnerability Overview
The Contact Form by Bit Form: Multi Step Form, Calculation Contact Form, Payment Contact Form & Custom Contact Form builder plugin for WordPress is vulnerable to arbitrary file read and deletion due to insufficient file path validation in multiple functions in versions 2.0 to 2.13.9. This makes it possible for authenticated attackers, with Administrator-level access and above, to read and delete arbitrary files on the server, which can easily lead to remote code execution when the right file is deleted (such as wp-config.php).
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 interaction from a victim user. A successful exploit has high impact on integrity, availability.
CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Reaching this weakness in Bit Form 2.0 – 2.13.9 takes an account at Administrator level or above. 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 Bit Form the fix is 2.13.10: builds 2.0 – 2.13.9 are affected, anything from 2.13.10 onward is not.
Remediation
Update to version 2.13.10, or a newer patched version
How does WordSec protect against this?
An attacker needs Administrator access first, so the firewall sees the attempt as traffic from a logged-in account: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Bit Form 2.13.10 closes this, and updating the plugin is the step that ends it.
- Firewall
- Alerts
External References
Related records
Same weakness class
Other vulnerabilities in Bit Form – Contact Form, Payment Forms, Multi Step Forms, Calculator & Custom Form Builder
- 9.8CVE-2025-6679: Contact Form by Bit Form… Arbitrary File Upload
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CVE-2026-16573 - 7.2CVE-2025-30885: Bit Form – Contact Form Plugin <= 2.18.0 Open Redirect
CVE-2025-30885 - 7.2CVE-2024-47319: Bit Form – Contact Form Plugin Arbitrary File Upload
CVE-2024-47319 - 7.2CVE-2024-47301: Bit Form – Contact Form Plugin <= 2.13.10 Stored XSS
CVE-2024-47301 - 7.2CVE-2024-7702: Contact Form by Bit Form SQL Injection
CVE-2024-7702 - 7.2CVE-2024-7780: Contact Form by Bit Form SQL Injection
CVE-2024-7780
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