CVE-2026-19501

Deferred Deferred - Pending Action

CSV Formula Injection in SureForms WordPress Plugin

Publication date: 2026-08-18

Last updated on: 2026-09-03

Assigner: CERT/CC

Description

CSV export functionality in Brainstorm Force SureForms version, <= 2.12.1, fails to neutralize spreadsheet formula characters in user-controlled form field names before generating CSV exports, which allows a remote attacker to execute spreadsheet formulas on an administrator's workstation when the exported CSV file is opened in a vulnerable spreadsheet application.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-08-18

Last Modified

2026-09-03

Generated

2026-09-07

AI Q&A

2026-08-18

EPSS Evaluated

2026-09-06

NVD

CVE-2026-19501

EUVD

EUVD-2026-60962

Affected Vendors & Products

Vendor	Product	Version / Range
brainstorm_force	sureforms	to 2.1.1 (inc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-1236	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.

Attack-Flow Graph

Executive Summary

This vulnerability is a CSV injection flaw in the SureForms WordPress plugin version 2.1.1 or earlier. It occurs when user-controlled form field names contain spreadsheet formula characters that are not neutralized before generating CSV exports. When an administrator opens the exported CSV file in a vulnerable spreadsheet application, the embedded formulas execute, potentially allowing remote code execution on the administrator's workstation.

Detection Guidance

To detect this vulnerability, monitor for CSV files containing spreadsheet formulas in user-controlled form field names. Check SureForms submissions for inputs with characters like =, +, -, @, or tabs that could trigger formula execution. Review exported CSV files for unexpected formulas before opening them in spreadsheet applications.

Impact Analysis

An attacker could exploit this to execute arbitrary spreadsheet formulas on your system when you open a malicious CSV export. This could lead to unauthorized actions like data theft, system compromise, or further network infiltration if the attacker gains control of your workstation.

Compliance Impact

This vulnerability could violate compliance requirements by exposing sensitive data through unauthorized CSV formula execution. It may lead to data breaches, compromising GDPR's data protection principles or HIPAA's safeguards for protected health information, potentially resulting in legal penalties and reputational damage.

Mitigation Strategies

Immediately update SureForms to version 2.1.3 or later to patch the vulnerability. Disable CSV export functionality if an update is not immediately possible. Implement input validation to block spreadsheet formula characters in form field names. Educate administrators to avoid opening CSV exports from untrusted sources.

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