CVE-2023-54339 CRITICAL

CVE-2023-54339: Webgrind 1.1 - Remote Command Execution (RCE) via dataFile Parameter

Vendor Jokkedk
Product Webgrind
Weakness CWE-78
Published January 13, 2026
Last update March 5, 2026
View on NVD All CVEs

CVSS base score

9.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

Webgrind 1.1 contains a remote command execution vulnerability that allows unauthenticated attackers to inject OS commands via the dataFile parameter in index.php. Attackers can execute arbitrary system commands by manipulating the dataFile parameter, such as using payload '0%27%26calc.exe%26%27' to execute commands on the target system.

Key dates

02Disclosure timeline

January 13, 2026 CVE published
March 5, 2026 Record updated