How severe is CVE-2026-7578?

CVE-2026-7578 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2026-7578 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-7578?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-7578 have an EU (EUVD) identifier?

Yes. CVE-2026-7578 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-26495.

When was CVE-2026-7578 published?

CVE-2026-7578 was published on 2026-05-01 and last updated on 2026-06-17.

CVE-2026-7578

CVE-2026-7578 is a medium-severity vulnerability with a CVSS 3.x base score of 4.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-284.

Key facts

Severity: Medium (CVSS 3.x base score 4.7)
CVSS v2: 5.8
CVSS v4: 2.0
EPSS exploit prediction: 0% (14th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-26495
Weakness: CWE-284
Published: 2026-05-01
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2026-7578?: 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.
How severe is CVE-2026-7578?: CVE-2026-7578 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2026-7578 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-7578?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-7578 have an EU (EUVD) identifier?: Yes. CVE-2026-7578 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-26495.
When was CVE-2026-7578 published?: CVE-2026-7578 was published on 2026-05-01 and last updated on 2026-06-17.

References

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