CVE-2020-17452

HIGHNVD 7.27.2—

7.2

flatCore before 1.5.7 allows upload and execution of a .php file by an admin.

CVSS v3: 7.2
EG Score: 7.2(medium)
EPSS: 75.0%
KEV: Not listed

Published

August 9, 2020

Last Modified

November 21, 2024

References (4)

cve@mitrehttps://lists.openwall.net/full-disclosure/2020/08/07/1
cve@mitrehttps://sec-consult.com/en/blog/advisories/multiple-vulnerabilities-in-flatcore-cms/
af854a3a-2127-422b-91ae-364da2661108https://lists.openwall.net/full-disclosure/2020/08/07/1
af854a3a-2127-422b-91ae-364da2661108https://sec-consult.com/en/blog/advisories/multiple-vulnerabilities-in-flatcore-cms/

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 9× in last 7d / 18× 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
2026-05-31 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
2026-05-27 00:29 UTCEG score recompute
2026-05-27 00:29 UTCGHSA enrichment
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 10:46 UTCOSV refresh
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-2020-17452?

CVE-2020-17452 is a high vulnerability published on August 9, 2020. flatCore before 1.5.7 allows upload and execution of a .php file by an admin.

When was CVE-2020-17452 disclosed?

CVE-2020-17452 was first published in the National Vulnerability Database on August 9, 2020, 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-2020-17452 actively exploited?

CVE-2020-17452 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 75.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2020-17452?

CVE-2020-17452 has a CVSS v3 base score of 7.2 (NVD).

How do I remediate CVE-2020-17452?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-17452, 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-2020-17452

📅 Published

🔄 Last Modified

🔗 References (4)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2020-17452?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (4)

Frequently asked(5)

Related CVEs(same CWE)