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TI-2026-13055 Aliases CVE-2026-15516GHSA-r7c2-xcmm-m4pr

MacCMS Pro Installation Index.php step5 authorization

Priority MEDIUM 61CWE-285Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
Low · Low · Low
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-285.

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. 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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.0044 38th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed MacCMS Pro: 2022.1000.3025

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
—MacCMS Pro2022.1000.30052022.1000.3025Patch availableCNA
  • MacCMS Pro Vendor— Affected 2022.1000.3005 Fixed in 2022.1000.3025 Patch available CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:2.3:a:maccms_pro:maccms_pro:*:*:*:*:*:*:*:*———
  • cpe:2.3:a:maccms_pro:maccms_pro:*:*:*:*:*:*:*:* Versions — — ·—

Remediation

  • Fix · CNA MacCMS Pro Fixed in 2022.1000.3025

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-15516
  2. 2026-10-03 Alias added: GHSA-r7c2-xcmm-m4pr

References

Exploit 1

Patch 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences