CVE-2026-54243 (CVSS 6.1)

Description

Statamic is a Laravel and Git powered content management system (CMS). Prior to 5.73.24 and 6.20.1, form submission values in src/Forms/Exporters/CsvExporter.php were not neutralized for spreadsheet formula characters when exported to CSV. A submission containing a value beginning with a formula trigger character, such as =, +, -, or @, could be interpreted as a live formula when a Control Panel user opens the export in a spreadsheet application. Form submissions can come from unauthenticated front-end visitors, so the malicious value can be supplied by an anonymous user and is later triggered by an editor opening the export. This issue is fixed in versions 5.73.24 and 6.20.1.

Is your site exposed to CVE-2026-54243?

Run a free security scan — no signup, results in seconds.

CVSS v3.1 Score

6.1

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS — Exploit Prediction

0.0034

Probability of exploitation

0.26%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-1236 CWE-1236

References

Other References

https://github.com/statamic/cms/commit/f17c098e52a92597fc5f81bd287700b3d05f4add https://github.com/statamic/cms/pull/14760 https://github.com/statamic/cms/releases/tag/v5.73.24 https://github.com/statamic/cms/releases/tag/v6.20.1 https://github.com/statamic/cms/security/advisories/GHSA-h77m-qrj7-jxcw

Frequently Asked Questions

What is CVE-2026-54243? +

Statamic is a Laravel and Git powered content management system (CMS). Prior to 5.73.24 and 6.20.1, form submission values in src/Forms/Exporters/CsvExporter.php were not neutralized for spreadsheet formula characters when exported to CSV. A submission containing a value beginning with a formula trigger character, such as =, +, -, or @, could be interpreted as a live formula when a Control Panel user opens the export in a spreadsheet application. Form submissions can come from unauthenticated front-end visitors, so the malicious value can be supplied by an anonymous user and is later triggered by an editor opening the export. This issue is fixed in versions 5.73.24 and 6.20.1. It has a CVSS v3.1 base score of 6.1 (MEDIUM).

How severe is CVE-2026-54243? +

CVE-2026-54243 has a CVSS v3.1 score of 6.1 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0034, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-54243? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2025-1421

Data provided in a request performed to the server while activating a new device are put in a database. Other …

CVE-2024-9102

phpLDAPadmin since at least version 1.2.0 through the latest version 1.2.6.7 allows users to export elements from the LDAP directory …

CVE-2026-14846

In version 8.2.1 of PrestaShop, there is a vulnerability relating to the incorrect sanitisation of elements, caused by inadequate validation …

CVE-2023-46400 9.8

KWHotel 0.47 is vulnerable to CSV Formula Injection in the add guest function.

CVE-2023-46401 9.8

KWHotel 0.47 is vulnerable to CSV Formula Injection in the invoice adding function.

CVE-2024-55532 9.8

Improper Neutralization of Formula Elements in Export CSV feature of Apache Ranger in Apache Ranger Version < 2.6.0. Users are …

CVE-2026-54243