CVE-2020-21650

HIGHNVD 8.88.8—

8.8

Myucms v2.2.1 contains a remote code execution (RCE) vulnerability in the component \controller\Config.php, which can be exploited via the add() method.

CVSS v3: 8.8
EG Score: 8.8(medium)
EPSS: 88.1%
KEV: Not listed

Published

October 6, 2021

Last Modified

November 21, 2024

References (4)

cve@mitrehttps://cwe.mitre.org/data/definitions/96.html
cve@mitrehttps://github.com/lolipop1234/XXD/issues/6
af854a3a-2127-422b-91ae-364da2661108https://cwe.mitre.org/data/definitions/96.html
af854a3a-2127-422b-91ae-364da2661108https://github.com/lolipop1234/XXD/issues/6

Weakness Classification(1)

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

CWE-94Improper Control of Generation of Code (Code Injection)

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.

2026-06-06 13:45 UTCepss_batch
2026-06-06 13:45 UTCepss_batch
2026-06-05 22:45 UTCepss_batch
2026-06-05 22:45 UTCepss_batch
2026-06-04 13:10 UTCepss_batch
2026-06-04 13:10 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-06-02 20:11 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 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 09:22 UTCEG score recompute
2026-05-26 09:22 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2020-21650?

CVE-2020-21650 is a high vulnerability published on October 6, 2021. Myucms v2.2.1 contains a remote code execution (RCE) vulnerability in the component \controller\Config.php, which can be exploited via the add() method.

When was CVE-2020-21650 disclosed?

CVE-2020-21650 was first published in the National Vulnerability Database on October 6, 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-2020-21650 actively exploited?

CVE-2020-21650 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 88.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2020-21650?

CVE-2020-21650 has a CVSS v3 base score of 8.8 (NVD).

How do I remediate CVE-2020-21650?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-21650, 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.

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CVE-2020-21650

📅 Published

🔄 Last Modified

🔗 References (4)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2020-21650?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (4)

Frequently asked(5)

Related CVEs(same CWE)