What’s Vulnerable › Vulnerabilities

CVE-2024-0590: Microsoft Clarity <= 0.9.3 - Cross-Site Request Forgery to Stored Cross-Site Scripting

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-02-20 · updated 2026-06-17
• Weakness: CWE-352

Description

The Microsoft Clarity plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 0.9.3. This is due to missing nonce validation on the edit_clarity_project_id() function. This makes it possible for unauthenticated attackers to change the project id and add malicious JavaScript via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

Affected products

• Microsoft Clarity: before 0.9.4 — fixed in 0.9.4
• Microsoft Clarity: through 0.9.3

How to fix

Upgrade to a fixed version: Microsoft Clarity 0.9.4. Check the vendor advisory for mitigations.

References

• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3036293%40microsoft-clarity&new=3036293%40microsoft-clarity&sfp_email=&sfph_mail=
• https://www.wordfence.com/threat-intel/vulnerabilities/id/c2f4461b-1373-4d09-8430-14d1961e1644?source=cve
• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3036293%40microsoft-clarity&new=3036293%40microsoft-clarity&sfp_email=&sfph_mail=
• https://www.wordfence.com/threat-intel/vulnerabilities/id/c2f4461b-1373-4d09-8430-14d1961e1644?source=cve

Get alerted when CVE-2024-0590 or the next vulnerability affects your stack