CVE-2021-33850

5.4 mediumEPSS 1.6%

Medium (5.4) in microsoft clarity. EPSS 1.6% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

5.4 medium

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

EPSS: 1.6% chance of exploitation in the next 30 days; higher than 75% of CVEs (scores of 2026-10-31)
CWE: CWE-79
Published: 2021-11-19
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

microsoft:clarity

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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