CVE-2020-21480

Name: CVE-2020-21480
Creator: NVD / NIST
Published: 2021-09-15T22:15:09.28+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.2/10EPSS 1.63%

Last modified Jun 17, 2026

CVE-2020-21480 is a high-severity vulnerability rated 7.2/10 on the CVSS scale. An arbitrary file write vulnerability in RGCMS v1.06 allows attackers to execute arbitrary code via a crafted PHP file.. EPSS estimates a 1.63% chance of exploitation in the next 30 days.

Description

An arbitrary file write vulnerability in RGCMS v1.06 allows attackers to execute arbitrary code via a crafted PHP file.

Metrics

CVSS 3.1

7.2/10

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

EPSS Probability

1.63%

73.2th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Rgcms Project	Rgcms	1.06

References

https://www.porlockz.com/A-arbitrary-file-write-vulnerability-in-RGCMS-V1-06/Exploit, Third Party Advisory
https://www.porlockz.com/A-arbitrary-file-write-vulnerability-in-RGCMS-V1-06/Exploit, Third Party Advisory

Timeline

Published: Sep 15, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-21480?

An arbitrary file write vulnerability in RGCMS v1.06 allows attackers to execute arbitrary code via a crafted PHP file.

How severe is CVE-2020-21480?

CVE-2020-21480 has a CVSS score of 7.2/10 (HIGH severity). The EPSS model estimates a 1.63% probability of exploitation in the next 30 days.

How do I fix CVE-2020-21480?

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-2020-21480?

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

Scan your code now

Source: NVD / NIST