CVE-2020-21862

HIGHNVD 8.18.1—Elevated

8.1

Directory traversal vulnerability in DuxCMS 2.1 allows attackers to delete arbitrary files via /admin/AdminBackup/del.

CVSS v3: 8.1
EG Score: 8.1(medium)
EPSS: 39.2%
KEV: Not listed

Published

July 6, 2023

Last Modified

November 21, 2024

References (2)

cve@mitrehttps://gitee.com/annyshow/DuxCMS2.1/issues/I182Z5
af854a3a-2127-422b-91ae-364da2661108https://gitee.com/annyshow/DuxCMS2.1/issues/I182Z5

Weakness Classification(1)

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

CWE-22Path Traversal

Data Freshness Timeline

(refreshed 14× 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.

2026-06-07 15:23 UTCepss_batch
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Frequently asked(5)

What is CVE-2020-21862?

CVE-2020-21862 is a high vulnerability published on July 6, 2023. Directory traversal vulnerability in DuxCMS 2.1 allows attackers to delete arbitrary files via /admin/AdminBackup/del.

When was CVE-2020-21862 disclosed?

CVE-2020-21862 was first published in the National Vulnerability Database on July 6, 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-2020-21862 actively exploited?

CVE-2020-21862 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 39.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2020-21862?

CVE-2020-21862 has a CVSS v3 base score of 8.1 (NVD).

How do I remediate CVE-2020-21862?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-21862, 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-2020-21862

📅 Published

🔄 Last Modified

🔗 References (2)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2020-21862?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (2)

Frequently asked(5)

Related CVEs(same CWE)