How severe is CVE-2025-13827?

CVE-2025-13827 has a CVSS 4.0 base score of 8.8, rated high severity.

Is CVE-2025-13827 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-13827?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-13827 have an EU (EUVD) identifier?

Yes. CVE-2025-13827 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-200276.

When was CVE-2025-13827 published?

CVE-2025-13827 was published on 2025-12-02 and last updated on 2026-06-17.

CVE-2025-13827

CVE-2025-13827 is a high-severity vulnerability with a CVSS 4.0 base score of 8.8. 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: High (CVSS 4.0 base score 8.8)
EPSS exploit prediction: 0% (29th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-200276
Weakness: CWE-434
Published: 2025-12-02
Last modified: 2026-06-17

Description

Summary Arbitrary files can be uploaded via the GrapesJS Builder, as the types of files that can be uploaded are not restricted. ImpactIf the media folder is not restricted from running files this can lead to a remote code execution.

Frequently asked questions

What is CVE-2025-13827?: Summary Arbitrary files can be uploaded via the GrapesJS Builder, as the types of files that can be uploaded are not restricted. ImpactIf the media folder is not restricted from running files this can lead to a remote code execution.
How severe is CVE-2025-13827?: CVE-2025-13827 has a CVSS 4.0 base score of 8.8, rated high severity.
Is CVE-2025-13827 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-13827?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-13827 have an EU (EUVD) identifier?: Yes. CVE-2025-13827 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-200276.
When was CVE-2025-13827 published?: CVE-2025-13827 was published on 2025-12-02 and last updated on 2026-06-17.

References

https://github.com/mautic/mautic/security/advisories/GHSA-5xw2-57jx-pgjp

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