---
id: CVE-2026-72589
title: >-
  An OS command injection vulnerability in alseambusher/crontab-ui through 0.4.2
  allows an unauthenticated remote attacker to execute arbitrary system commands
  by importing a crafted crontab database file
summary: >-
  An OS command injection vulnerability in alseambusher/crontab-ui through 0.4.2
  allows an unauthenticated remote attacker to execute arbitrary system commands
  by importing a crafted crontab database file. The POST /import endpoint
  accepts…
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-78
published: '2026-08-10'
updated: '2026-08-28'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-72589'
references:
  - url: 'https://github.com/alseambusher/crontab-ui'
    label: 309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c
  - url: 'https://github.com/alseambusher/crontab-ui/blob/master/crontab.js'
    label: 309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c
tags:
  - nvd
epss: 0.01947
epssPercentile: 0.79312
ingestedAt: '2026-08-29T17:39:55.877Z'
---

## Overview

An OS command injection vulnerability in alseambusher/crontab-ui through 0.4.2 allows an unauthenticated remote attacker to execute arbitrary system commands by importing a crafted crontab database file. The POST /import endpoint accepts arbitrary .db files and overwrites the application database without validation.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.