CVE-2020-21585

CRITICALNVD 9.89.8—

9.8

Vulnerability in emlog v6.0.0 allows user to upload webshells via zip plugin module.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 94.2%
KEV: Not listed

Published

April 2, 2021

Last Modified

November 21, 2024

Advisory Details (1)

Auto-updated May 30, 2026

No patch confirmed yet.

generic

GitHub · Where software is built

https://github.com/emlog/emlog/issues/54

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 11× in last 7d / 19× 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.

2026-06-02 20:11 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-29 13:42 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-26 18:46 UTCEG score recompute
2026-05-26 18:46 UTCGHSA enrichment
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-24 16:48 UTCepss_batch

Frequently asked(5)

What is CVE-2020-21585?

CVE-2020-21585 is a critical vulnerability published on April 2, 2021. Vulnerability in emlog v6.0.0 allows user to upload webshells via zip plugin module.

When was CVE-2020-21585 disclosed?

CVE-2020-21585 was first published in the National Vulnerability Database on April 2, 2021, 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-2020-21585 actively exploited?

CVE-2020-21585 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 94.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2020-21585?

CVE-2020-21585 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2020-21585?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-21585, 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-2020-21585

📅 Published

🔄 Last Modified

📋 Advisory Details (1)

GitHub · Where software is built

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2020-21585?

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Published

Last Modified

Advisory Details (1)

Frequently asked(5)

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