CVE-2021-32856

Name: CVE-2021-32856
Creator: NVD / NIST
Published: 2023-02-21T15:15:11.54+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.62%

Last modified Jun 17, 2026

CVE-2021-32856 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. Microweber is a drag and drop website builder and content management system. Versions 1.2.12 and prior are vulnerable to copy-paste cross-site scripting (XSS). EPSS estimates a 0.62% chance of exploitation in the next 30 days.

Description

Microweber is a drag and drop website builder and content management system. Versions 1.2.12 and prior are vulnerable to copy-paste cross-site scripting (XSS). For this particular type of XSS, the victim needs to be fooled into copying a malicious payload into the text editor. A fix was attempted in versions 1.2.9 and 1.2.12, but it is incomplete.

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

0.62%

45.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Microweber	Microweber	<= 1.2.12

References

https://github.com/microweber/microweber/commit/f3b86d59ab674dbf514f9f9948ddfa091739ab75Patch, Third Party Advisory
https://securitylab.github.com/advisories/GHSL-2021-1005-Microweber/Exploit, Third Party Advisory
https://github.com/microweber/microweber/commit/f3b86d59ab674dbf514f9f9948ddfa091739ab75Patch, Third Party Advisory
https://securitylab.github.com/advisories/GHSL-2021-1005-Microweber/Exploit, Third Party Advisory

Timeline

Published: Feb 21, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-32856?

How severe is CVE-2021-32856?

CVE-2021-32856 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.62% probability of exploitation in the next 30 days.

How do I fix CVE-2021-32856?

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-2021-32856?

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

Scan your code now

Source: NVD / NIST