CVE-2021-37394

Name: CVE-2021-37394
Creator: NVD / NIST
Published: 2021-07-26T18:15:08.587+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 1.17%

Last modified Jun 17, 2026

CVE-2021-37394 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. In RPCMS v1.8 and below, attackers can interact with API and change variable "role" to "admin" to achieve admin user registration.. EPSS estimates a 1.17% chance of exploitation in the next 30 days.

Description

In RPCMS v1.8 and below, attackers can interact with API and change variable "role" to "admin" to achieve admin user registration.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

1.17%

63.5th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Rpcms	Rpcms	<= 1.8

References

https://gist.github.com/victomteng1997/bfa1e0e07dd22f7e0b13256eda79626fExploit, Third Party Advisory
https://github.com/ralap-z/RPCMS/Product
https://gist.github.com/victomteng1997/bfa1e0e07dd22f7e0b13256eda79626fExploit, Third Party Advisory
https://github.com/ralap-z/RPCMS/Product

Timeline

Published: Jul 26, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-37394?

In RPCMS v1.8 and below, attackers can interact with API and change variable "role" to "admin" to achieve admin user registration.

How severe is CVE-2021-37394?

CVE-2021-37394 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.17% probability of exploitation in the next 30 days.

How do I fix CVE-2021-37394?

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-2021-37394?

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

Scan your code now

Source: NVD / NIST