PT-2021-20346 · Microsoft · Clarity

Published 2021-11-19 · Updated 2021-11-23 · CVE-2021-33850

Positive Technologies (AI Summary)

CVSS v3.1

5.4

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: Microsoft Clarity version 0.3

Description: The issue is a Cross-Site Scripting vulnerability. The XSS payload executes whenever the user changes the clarity configuration. The payload is stored on the configuring project Id page.

Recommendations: For Microsoft Clarity version 0.3, as a temporary workaround, consider restricting access to the clarity configuration page until a patch is available. Avoid changing the clarity configuration in this version to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2021-33850

Affected Products

Clarity

References · 5

• 🔥 https://cybersecurityworks.com/zerodays/cve-2021-33850-stored-cross-site-scripting-xss-in-wordpress-microsoft-clarity-plugin.html · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-33850 · Security Note
• https://osv.dev/vulnerability/CVE-2021-33850 · Vendor Advisory
• https://t.me/cvenotify/23683 · Telegram Post
• https://t.me/cibsecurity/32700 · Telegram Post