Improper Neutralization of Formula Elements in a CSV File in baserCMS - CVE-2026-65875
Published: July 30, 2026
Vulnerability identifier: #VU140524
CSH Severity: Medium
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-65875
CWE-ID: CWE-1236
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary commands on the administrator's workstation.
The vulnerability exists due to improper neutralization of formula elements in a CSV file in the Contact Form CSV export feature when processing user-supplied contact form input for CSV export. A remote attacker can submit input containing a spreadsheet formula payload to execute arbitrary commands on the administrator's workstation.
User interaction is required when an authenticated user opens the exported CSV file in a spreadsheet application such as Excel or LibreOffice Calc.
Affected software
baserCMS
How to mitigate CVE-2026-65875
Install security update from vendor's website.
baserCMS - update to 5.3.0