CVE-2023-28340

MEDIUMNVD 6.56.5—

6.5

Zoho ManageEngine Applications Manager through 16320 allows the admin user to conduct an XXE attack.

CVSS v3: 6.5
EG Score: 6.5(medium)
EPSS: 92.0%
KEV: Not listed

Published

April 11, 2023

Last Modified

February 10, 2025

References (4)

cve@mitrehttps://manageengine.com
cve@mitrehttps://www.manageengine.com/products/applications_manager/security-updates/security-updates-cve-2023-28340.html
af854a3a-2127-422b-91ae-364da2661108https://manageengine.com
af854a3a-2127-422b-91ae-364da2661108https://www.manageengine.com/products/applications_manager/security-updates/security-updates-cve-2023-28340.html

Weakness Classification(1)

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

CWE-611Improper Restriction of XML External Entity Reference (XXE)

Data Freshness Timeline

(refreshed 12× 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.

2026-06-04 13:11 UTCepss_batch
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Frequently asked(5)

What is CVE-2023-28340?

CVE-2023-28340 is a medium vulnerability published on April 11, 2023. Zoho ManageEngine Applications Manager through 16320 allows the admin user to conduct an XXE attack.

When was CVE-2023-28340 disclosed?

CVE-2023-28340 was first published in the National Vulnerability Database on April 11, 2023, with the most recent update on February 10, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2023-28340 actively exploited?

CVE-2023-28340 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 92.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2023-28340?

CVE-2023-28340 has a CVSS v3 base score of 6.5 (NVD).

How do I remediate CVE-2023-28340?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-28340, 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-2023-28340

📅 Published

🔄 Last Modified

🔗 References (4)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2023-28340?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (4)

Frequently asked(5)

Related CVEs(same CWE)