5.6
MEDIUM CVSS 3.1
CVE-2026-15516
MacCMS Pro Installation Index.php step5 authorization
Description

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.

INFO

Published Date :

July 13, 2026, 1:17 a.m.

Last Modified :

July 13, 2026, 1:17 a.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2026-15516 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Maccms_pro maccms_pro
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 2.0 MEDIUM [email protected]
CVSS 3.1 MEDIUM [email protected]
CVSS 4.0 LOW [email protected]
Solution
Update MacCMS Pro to version 2022.1000.3025 to fix authorization bypass vulnerability.
  • Upgrade MacCMS Pro to version 2022.1000.3025.
  • Update the Installation Module component.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-15516.

URL Resource
https://github.com/magicblack/maccms10/releases?page=3#release-v2022.1000.3025
https://github.com/trustbigcat/CVE/
https://vuldb.com/cve/CVE-2026-15516
https://vuldb.com/submit/848741
https://vuldb.com/vuln/377845
https://vuldb.com/vuln/377845/cti
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-15516 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-15516 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-15516 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2026-15516 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by [email protected]

    Jul. 13, 2026

    Action Type Old Value New Value
    Added Affected [{'cpes': ['cpe:2.3:a:maccms_pro:maccms_pro:*:*:*:*:*:*:*:*'], 'vendor': 'n/a', 'modules': ['Installation Module'], 'product': 'MacCMS Pro', 'versions': [{'status': 'affected', 'version': '2022.1000.3005'}, {'status': 'unaffected', 'version': '2022.1000.3025'}]}]
    Added Description 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.
    Added CVSS V4.0 AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
    Added CVSS V3.1 AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
    Added CVSS V2 (AV:N/AC:H/Au:N/C:P/I:P/A:P)
    Added CWE CWE-285
    Added CWE CWE-639
    Added Reference https://github.com/magicblack/maccms10/releases?page=3#release-v2022.1000.3025
    Added Reference https://github.com/trustbigcat/CVE/
    Added Reference https://vuldb.com/cve/CVE-2026-15516
    Added Reference https://vuldb.com/submit/848741
    Added Reference https://vuldb.com/vuln/377845
    Added Reference https://vuldb.com/vuln/377845/cti
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.