Critical 9.8Published Jan 13, 2026

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

Updated under an hour ago (Oct 27, 2026, 5:10 AM ET)

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It affects jokkedk Webgrind and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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.

CVSS: 9.8 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-78
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Analyzed
Record last updated: Mar 4, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

jokkedk Webgrind jokkedk:webgrind (from the name)	1.1	CNA record
webgrind_project webgrind webgrind_project:webgrind	through 1.1	NVD

References

References

https://www.exploit-db.com/exploits/51074	exploit
http://github.com/jokkedk/webgrind/	product
https://www.vulncheck.com/advisories/webgrind-remote-command-execution-rce-via-datafile-parameter	third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.