How severe is CVE-2023-53869?

CVE-2023-53869 has a CVSS 4.0 base score of 8.7, rated high severity.

Is CVE-2023-53869 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2023-53869?

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-2023-53869 have an EU (EUVD) identifier?

Yes. CVE-2023-53869 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-203436.

When was CVE-2023-53869 published?

CVE-2023-53869 was published on 2025-12-15 and last updated on 2026-06-17.

CVE-2023-53869

CVE-2023-53869 is a high-severity vulnerability with a CVSS 4.0 base score of 8.7. 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-434.

Key facts

Severity: High (CVSS 4.0 base score 8.7)
EPSS exploit prediction: 0% (35th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-203436
Weakness: CWE-434
Published: 2025-12-15
Last modified: 2026-06-17

Description

WEBIGniter 28.7.23 contains a file upload vulnerability that allows authenticated attackers to upload and execute dangerous PHP files through the media function. Attackers can leverage any created account to upload malicious PHP scripts that enable remote code execution on the application server.

Frequently asked questions

What is CVE-2023-53869?: WEBIGniter 28.7.23 contains a file upload vulnerability that allows authenticated attackers to upload and execute dangerous PHP files through the media function. Attackers can leverage any created account to upload malicious PHP scripts that enable remote code execution on the application server.
How severe is CVE-2023-53869?: CVE-2023-53869 has a CVSS 4.0 base score of 8.7, rated high severity.
Is CVE-2023-53869 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2023-53869?: 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-2023-53869 have an EU (EUVD) identifier?: Yes. CVE-2023-53869 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-203436.
When was CVE-2023-53869 published?: CVE-2023-53869 was published on 2025-12-15 and last updated on 2026-06-17.

References

Other CWE-434 (Unrestricted Upload of File with Dangerous Type) vulnerabilities

CVE-2026-48283 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Unrestricted Upload of File with Dangerous Type…
CVE-2026-48276 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Unrestricted Upload of File with Dangerous Type…
CVE-2026-57700 — Critical (CVSS 10.0): Unrestricted Upload of File with Dangerous Type vulnerability in Daan.Dev OMGF Pro allows Using Malicious Files. This…
CVE-2025-69129 — Critical (CVSS 10.0): Unauthenticated Arbitrary File Upload in WordPress & WooCommerce Scraper Plugin, Import Data from Any Site <= 1.0.7…
CVE-2026-40772 — Critical (CVSS 10.0): Unauthenticated Arbitrary File Upload in GeekyBot <= 1.2.2 versions.
CVE-2026-40412 — Critical (CVSS 10.0): Unrestricted upload of file with dangerous type in Azure Orbital Spatio allows an unauthorized attacker to execute code…

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