Form Builder <= 1.9.9.0 - Unauthenticated CSV Injection
Strategic Overview
- Status
- Unpatched
- Affected Plugin
- Form Builder | Create Responsive Contact Forms
- Affected Version
<= 1.9.9.0- CVSS
- 8.3High
- Weakness type
- CWE-1236 · Improper Neutralization of Formula Elements in a CSV File
- CVE
CVE-2023-23796
At a glance
CVE-2023-23796 is a high-severity Improper Neutralization of Formula Elements in a CSV File vulnerability in the Form Builder WordPress plugin, affecting versions <= 1.9.9.0. It carries a CVSS score of 8.3 (reachable over the network; low attack complexity). Exploitation requires no authentication. No fixed release has been reported yet; treat installations running this software as exposed. Disclosed June 2023, reported by Rafshanzani Suhada.
Vulnerability Overview
The Form Builder plugin for WordPress is vulnerable to CSV Injection in versions up to, and including, 1.9.9.0. This allows unauthenticated attackers to embed untrusted input into exported CSV files, which can result in code execution when these files are downloaded and opened on a local system with a vulnerable configuration.
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.
CWE-1236: Improper Neutralization of Formula Elements in a CSV File
The product saves user-provided information into a Comma-Separated Value (CSV) file, but it does not neutralize or incorrectly neutralizes special elements that could be interpreted as a command when the file is opened by a spreadsheet product.
Remediation
No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.
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. No patched version is recorded yet, which is the case where a filtering layer matters most, because there is nothing to update to.
- Firewall
- Login Security
- Alerts
External References
Related records
Other vulnerabilities in Form Builder | Create Responsive Contact Forms
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