How severe is CVE-2025-15009?

CVE-2025-15009 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2025-15009 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-15009?

CVE-2025-15009 affects 1000mz Chestnutcms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-15009?

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

Does CVE-2025-15009 have an EU (EUVD) identifier?

Yes. CVE-2025-15009 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-204682.

When was CVE-2025-15009 published?

CVE-2025-15009 was published on 2025-12-22 and last updated on 2026-06-17.

CVE-2025-15009

CVE-2025-15009 is a medium-severity vulnerability in 1000mz Chestnutcms with a CVSS 3.x base score of 6.3. 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-284.

Key facts

Severity: Medium (CVSS 3.x base score 6.3)
CVSS v2: 6.5
CVSS v4: 2.1
EPSS exploit prediction: 0% (21st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-204682
Weakness: CWE-284
Affected product: 1000mz Chestnutcms
Published: 2025-12-22
Last modified: 2026-06-17

Description

A flaw has been found in liweiyi ChestnutCMS up to 1.5.8. This vulnerability affects the function FilenameUtils.getExtension of the file /dev-api/common/upload of the component Filename Handler. Executing manipulation of the argument File can lead to unrestricted upload. The attack may be launched remotely. The exploit has been published and may be used.

Frequently asked questions

What is CVE-2025-15009?: A flaw has been found in liweiyi ChestnutCMS up to 1.5.8. This vulnerability affects the function FilenameUtils.getExtension of the file /dev-api/common/upload of the component Filename Handler. Executing manipulation of the argument File can lead to unrestricted upload. The attack may be launched remotely. The exploit has been published and may be used.
How severe is CVE-2025-15009?: CVE-2025-15009 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2025-15009 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-15009?: CVE-2025-15009 affects 1000mz Chestnutcms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-15009?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-15009 have an EU (EUVD) identifier?: Yes. CVE-2025-15009 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-204682.
When was CVE-2025-15009 published?: CVE-2025-15009 was published on 2025-12-22 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:1000mz:chestnutcms:*:*:*:*:*:*:*:*

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