CVE-2021-32856: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

February 21, 2023 (updated February 22, 2023)

Microweber is a drag and drop website builder and content management system. Versions 1.2.12 and prior is 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.

References

github.com/advisories/GHSA-mv37-xrmc-hf64
github.com/microweber/microweber/commit/f3b86d59ab674dbf514f9f9948ddfa091739ab75
nvd.nist.gov/vuln/detail/CVE-2021-32856
securitylab.github.com/advisories/GHSL-2021-1005-Microweber/

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