CVE-2021-33850

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2021-11-19 · updated 2026-06-17
Weakness: CWE-79

Description

There is a Cross-Site Scripting vulnerability in Microsoft Clarity version 0.3. The XSS payload executes whenever the user changes the clarity configuration in Microsoft Clarity version 0.3. The payload is stored on the configuring project Id page.

Affected products

Microsoft Clarity: 0.3
Microsoft Clarity: 0.3

References

https://cybersecurityworks.com/zerodays/cve-2021-33850-stored-cross-site-scripting-xss-in-wordpress-microsoft-clarity-plugin.html
https://cybersecurityworks.com/zerodays/cve-2021-33850-stored-cross-site-scripting-xss-in-wordpress-microsoft-clarity-plugin.html

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