---
id: CVE-2026-15516
title: A vulnerability was detected in MacCMS Pro up to 2022.1000.3005
summary: >-
  A vulnerability was detected in MacCMS Pro up to 2022.1000.3005. Impacted is
  the function step5 of the file application/install/controller/Index.php of the
  component Installation Module. The manipulation results in authorization
  bypass. …
severity: medium
cvss: 5.6
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L'
cwe:
  - CWE-285
  - CWE-639
published: '2026-07-13'
updated: '2026-07-13'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-15516'
references:
  - url: >-
      https://github.com/magicblack/maccms10/releases?page=3#release-v2022.1000.3025
    label: cna@vuldb.com
  - url: 'https://github.com/trustbigcat/CVE/'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/cve/CVE-2026-15516'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/submit/848741'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/377845'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/377845/cti'
    label: cna@vuldb.com
tags:
  - nvd
ingestedAt: '2026-07-13T01:23:10.996Z'
epss: 0.0044
epssPercentile: 0.37721
---

## Overview

A vulnerability was detected in MacCMS Pro up to 2022.1000.3005. Impacted is the function step5 of the file application/install/controller/Index.php of the component Installation Module. The manipulation results in authorization bypass. The attack may be launched remotely. The attack requires a high level of complexity. The exploitability is considered difficult. The exploit is now public and may be used. Upgrading to version 2022.1000.3025 is recommended to address this issue. Upgrading the affected component is recommended.

## Remediation

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