CVE-2026-7578: MacCMS Pro Plugin Installation add.html install unrestricted upload

Severity: medium (CVSS 4.7 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-05-01 · updated 2026-06-17
Weakness: CWE-284

Description

A weakness has been identified in MacCMS Pro up to 2022.1.3. This vulnerability affects the function install of the file /admi.php/admin/addon/add.html of the component Plugin Installation Handler. Executing a manipulation can lead to unrestricted upload. The attack may be performed from remote. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products

MacCMS Pro: 2022.1.0, 2022.1.1, 2022.1.2, 2022.1.3

References

https://github.com/qingyun985/Cyber-Security/issues/1
https://vuldb.com/submit/792283
https://vuldb.com/vuln/360419
https://vuldb.com/vuln/360419/cti

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