CVE-2020-22539

HIGHNVD 7.27.2—Elevated

7.2

An arbitrary file upload vulnerability in the Add Category function of Codoforum v4.9 allows attackers to execute arbitrary code via uploading a crafted file.

CVSS v3: 7.2
EG Score: 7.2(medium)
EPSS: 32.5%
KEV: Not listed

Published

April 15, 2024

Last Modified

April 18, 2025

References (2)

cve@mitrehttps://gist.github.com/s4fv4n/320f536a684650c6948433de8d53713c
af854a3a-2127-422b-91ae-364da2661108https://gist.github.com/s4fv4n/320f536a684650c6948433de8d53713c

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 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
2026-05-24 04:30 UTCEG score recompute
2026-05-24 04:30 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2020-22539?

CVE-2020-22539 is a high vulnerability published on April 15, 2024. An arbitrary file upload vulnerability in the Add Category function of Codoforum v4.9 allows attackers to execute arbitrary code via uploading a crafted file.

When was CVE-2020-22539 disclosed?

CVE-2020-22539 was first published in the National Vulnerability Database on April 15, 2024, with the most recent update on April 18, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2020-22539 actively exploited?

CVE-2020-22539 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 32.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2020-22539?

CVE-2020-22539 has a CVSS v3 base score of 7.2 (NVD).

How do I remediate CVE-2020-22539?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-22539, 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-2020-22539

📅 Published

🔄 Last Modified

🔗 References (2)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2020-22539?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (2)

Frequently asked(5)

Related CVEs(same CWE)