---
id: CVE-2026-61498
title: >-
  Vitec Flamingo 4.12.2 contains an unauthenticated OS command injection
  vulnerability in the admin/ajax/gen_graphs.php endpoint that allows remote
  unauthenticated attackers to execute arbitrary commands by supplying shell
  metacharacters i…
summary: >-
  Vitec Flamingo 4.12.2 contains an unauthenticated OS command injection
  vulnerability in the admin/ajax/gen_graphs.php endpoint that allows remote
  unauthenticated attackers to execute arbitrary commands by supplying shell
  metacharacters i…
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
vendor: vitec
product: flamingo
affected:
  - flamingo <= 4.12.2
published: '2026-07-13'
updated: '2026-08-14'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-61498'
references:
  - url: 'https://damiri.fr/en/cve/CVE-2026-61498'
    label: disclosure@vulncheck.com
  - url: 'https://www.vitec.com/solutions/iptv-distribution'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/vitec-flamingo-unauthenticated-os-command-injection-via-gen-graphs-php
    label: disclosure@vulncheck.com
tags:
  - nvd
epss: 0.04008
epssPercentile: 0.90162
ingestedAt: '2026-08-15T13:26:46.579Z'
---

## Overview

Vitec Flamingo 4.12.2 contains an unauthenticated OS command injection vulnerability in the admin/ajax/gen_graphs.php endpoint that allows remote unauthenticated attackers to execute arbitrary commands by supplying shell metacharacters in the start, end, key, or format HTTP GET parameters. Attackers can exploit the lack of input sanitization in the graph generation script, which passes user-supplied values directly to shell commands via passthru(), to execute arbitrary OS commands with root privileges due to the web server context having passwordless sudo access.

## Affected

- `flamingo <= 4.12.2`

## Remediation

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