CVE-2021-30133

Name: CVE-2021-30133
Creator: NVD / NIST
Published: 2021-06-09T15:15:08.54+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.75%

Last modified Jun 17, 2026

CVE-2021-30133 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. A cross-site scripting (XSS) vulnerability in CloverDX Server 5.9.0, CloverDX 5.8.1, CloverDX 5.7.0, and earlier allows remote attackers to inject arbitrary web script or HTML via the sessionToken parameter of multiple methods in Simple HTTP API. This is resolved in 5.9.1 and 5.10.. EPSS estimates a 0.75% chance of exploitation in the next 30 days.

Description

A cross-site scripting (XSS) vulnerability in CloverDX Server 5.9.0, CloverDX 5.8.1, CloverDX 5.7.0, and earlier allows remote attackers to inject arbitrary web script or HTML via the sessionToken parameter of multiple methods in Simple HTTP API. This is resolved in 5.9.1 and 5.10.

Metrics

CVSS 3.1

6.1/10

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

EPSS Probability

0.75%

50.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Cloverdx	Cloverdx	<= 5.7.0
Cloverdx	Cloverdx	>= 5.9.0, < 5.9.1
Cloverdx	Cloverdx	5.8.0
Cloverdx	Cloverdx	5.8.1

References

https://support.cloverdx.com/releases/Release Notes, Vendor Advisory
https://support1.cloverdx.com/hc/en-us/articles/360021006520Patch, Vendor Advisory
https://support.cloverdx.com/releases/Release Notes, Vendor Advisory
https://support1.cloverdx.com/hc/en-us/articles/360021006520Patch, Vendor Advisory

Timeline

Published: Jun 9, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-30133?

How severe is CVE-2021-30133?

CVE-2021-30133 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.75% probability of exploitation in the next 30 days.

How do I fix CVE-2021-30133?

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-2021-30133?

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

Scan your code now

Source: NVD / NIST