How severe is CVE-2025-40678?

CVE-2025-40678 has a CVSS 4.0 base score of 5.3, rated medium severity.

Is CVE-2025-40678 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-40678?

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

Does CVE-2025-40678 have an EU (EUVD) identifier?

Yes. CVE-2025-40678 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-30001.

When was CVE-2025-40678 published?

CVE-2025-40678 was published on 2025-09-18 and last updated on 2026-06-17.

CVE-2025-40678

CVE-2025-40678 is a medium-severity vulnerability with a CVSS 4.0 base score of 5.3. 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-434.

Key facts

Severity: Medium (CVSS 4.0 base score 5.3)
EPSS exploit prediction: 0% (18th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-30001
Weakness: CWE-434
Published: 2025-09-18
Last modified: 2026-06-17

Description

Unrestricted upload vulnerability for dangerous file types on Summar Software´s Portal del Empleado. This vulnerability allows an attacker to upload a dangerous file type by sending a POST request using the parameter “cctl00$ContentPlaceHolder1$fuAdjunto” in “/MemberPages/ntf_absentismo.aspx”.

Frequently asked questions

What is CVE-2025-40678?: Unrestricted upload vulnerability for dangerous file types on Summar Software´s Portal del Empleado. This vulnerability allows an attacker to upload a dangerous file type by sending a POST request using the parameter “cctl00$ContentPlaceHolder1$fuAdjunto” in “/MemberPages/ntf_absentismo.aspx”.
How severe is CVE-2025-40678?: CVE-2025-40678 has a CVSS 4.0 base score of 5.3, rated medium severity.
Is CVE-2025-40678 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-40678?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-40678 have an EU (EUVD) identifier?: Yes. CVE-2025-40678 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-30001.
When was CVE-2025-40678 published?: CVE-2025-40678 was published on 2025-09-18 and last updated on 2026-06-17.

References

https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-summar-software-employee-portal

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