CVE-2023-39970

CRITICALNVD 9.89.8—

9.8

Unrestricted Upload of File with Dangerous Type vulnerability in AcyMailing component for Joomla. It allows remote code execution.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 84.0%
KEV: Not listed

Published

August 17, 2023

Last Modified

November 21, 2024

Advisory Details (1)

Auto-updated May 29, 2026

No patch confirmed yet.

generic

AcyMailing Starter, by Acyba - Joomla Extension Directory

https://extensions.joomla.org/extension/acymailing-starter/

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-434Unrestricted Upload of File with Dangerous Type

Data Freshness Timeline

(refreshed 15× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-05 22:46 UTCepss_batch
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2026-05-31 22:30 UTCepss_batch
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2026-05-27 13:39 UTCepss_batch

Frequently asked(5)

What is CVE-2023-39970?

CVE-2023-39970 is a critical vulnerability published on August 17, 2023. Unrestricted Upload of File with Dangerous Type vulnerability in AcyMailing component for Joomla. It allows remote code execution.

When was CVE-2023-39970 disclosed?

CVE-2023-39970 was first published in the National Vulnerability Database on August 17, 2023, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2023-39970 actively exploited?

CVE-2023-39970 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 84.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2023-39970?

CVE-2023-39970 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2023-39970?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-39970, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2023-39970

📅 Published

🔄 Last Modified

📋 Advisory Details (1)

AcyMailing Starter, by Acyba - Joomla Extension Directory

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2023-39970?

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Last Modified

Advisory Details (1)

Frequently asked(5)

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