CVE-2021-30150

Name: CVE-2021-30150
Creator: NVD / NIST
Published: 2021-04-06T06:15:15.483+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 2.77%

Last modified Jun 17, 2026

CVE-2021-30150 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. Composr 10.0.36 allows XSS in an XML script.. EPSS estimates a 2.77% chance of exploitation in the next 30 days.

Description

Composr 10.0.36 allows XSS in an XML script.

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

2.77%

84.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Ocproducts	Composr	10.0.36

References

http://packetstormsecurity.com/files/162111/Composr-CMS-10.0.36-Cross-Site-Scripting.htmlExploit, Third Party Advisory, VDB Entry
https://gitlab.com/composr-foundation/composr/commit/833a06466Patch, Third Party Advisory
http://packetstormsecurity.com/files/162111/Composr-CMS-10.0.36-Cross-Site-Scripting.htmlExploit, Third Party Advisory, VDB Entry
https://gitlab.com/composr-foundation/composr/commit/833a06466Patch, Third Party Advisory

Timeline

Published: Apr 6, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-30150?

Composr 10.0.36 allows XSS in an XML script.

How severe is CVE-2021-30150?

CVE-2021-30150 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 2.77% probability of exploitation in the next 30 days.

How do I fix CVE-2021-30150?

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-2021-30150?

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

Scan your code now

Source: NVD / NIST