OS Command Injection in hot-formula-parser package for Node.js

Published: 2020-01-10
Risk High
Patch available YES
Number of vulnerabilities 1
Exploitation vector Network
Public exploit N/A
Vulnerable software
Web applications / Modules and components for CMS

Vendor jansiegel

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) OS Command Injection

EUVDB-ID: #VU24174

Risk: High

CVSSv3.1: 8.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]


CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Exploit availability: No


The vulnerability allows a remote attacker to execute arbitrary shell commands on the target system.

The vulnerability exists due to software fails to sanitize values passed to the parse function and concatenates it in an eval call. If a value of the formula is supplied by user-controlled input it may allow attackers to run arbitrary commands in the server.
Parsing the following formula creates a test file in the present directory: "SUM([(function(){require('child_process').execSync('touch test')})(),2])"

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


Update to version 3.0.1.

Vulnerable software versions

hot-formula-parser: 1.0.1 - 3.0.0

CPE2.3 External links


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.