CRITICAL

CVE-2020-23828

CVSS v3

9.8

CRITICAL

EPSS Score

4.1 %

exploit probability, as of 2026-10-18

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2020-23828 yet.

Full record on NVD

Description

A File Upload vulnerability in SourceCodester Online Course Registration v1.0 allows remote attackers to achieve Remote Code Execution (RCE) on the hosting webserver by uploading a crafted PHP web-shell that bypasses the image upload filters. An attack uses /Online%20Course%20Registration/my-profile.php with the POST parameter photo.

Technical details

Published: 2020-09-15

Frequently asked questions

What is CVE-2020-23828?

Is CVE-2020-23828 actively exploited?

Active exploitation of CVE-2020-23828 has not been confirmed. Its EPSS score was 4.1% on 2026-10-18, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-23828?

CVE-2020-23828 has a CVSS v3 base score of 9.8 (CRITICAL severity).

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