CVE-2020-20092

Name: CVE-2020-20092
Creator: NVD / NIST
Published: 2021-05-13T15:15:07.417+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.29%

Last modified Jun 17, 2026

CVE-2020-20092 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. File Upload vulnerability exists in ArticleCMS 1.0 via the image upload feature at /admin by changing the Content-Type to image/jpeg and placing PHP code after the JPEG data, which could let a remote malicious user execute arbitrary PHP code.. EPSS estimates a 1.29% chance of exploitation in the next 30 days.

Description

File Upload vulnerability exists in ArticleCMS 1.0 via the image upload feature at /admin by changing the Content-Type to image/jpeg and placing PHP code after the JPEG data, which could let a remote malicious user execute arbitrary PHP code.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.29%

66.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-434

Affected Software

Vendor	Product	Versions
Articlecms Project	Articlecms	1.0

References

https://github.com/woider/ArticleCMS/issues/8Exploit, Third Party Advisory
https://github.com/woider/ArticleCMS/issues/8Exploit, Third Party Advisory

Timeline

Published: May 13, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-20092?

How severe is CVE-2020-20092?

CVE-2020-20092 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.29% probability of exploitation in the next 30 days.

How do I fix CVE-2020-20092?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-20092?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST