CVE-2024-9021

Name: CVE-2024-9021
Creator: NVD / NIST
Published: 2024-10-08T06:15:02.693+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 0.41%

Last modified Jun 17, 2026

CVE-2024-9021 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. In the process of testing the Relevanssi WordPress plugin before 4.23.1, a vulnerability was found that allows you to implement Stored XSS on behalf of the Contributor+ by embedding malicious script, which entails account takeover backdoor. EPSS estimates a 0.41% chance of exploitation in the next 30 days.

Description

In the process of testing the Relevanssi WordPress plugin before 4.23.1, a vulnerability was found that allows you to implement Stored XSS on behalf of the Contributor+ by embedding malicious script, which entails account takeover backdoor

Metrics

CVSS 3.1

5.4/10

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

EPSS Probability

0.41%

33.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Relevanssi	Relevanssi	< 4.23.1

References

https://wpscan.com/vulnerability/5f25646d-b80b-40b1-bcaf-3b860ddc4059/Exploit, Third Party Advisory

Timeline

Published: Oct 8, 2024
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2024-9021?

How severe is CVE-2024-9021?

CVE-2024-9021 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.41% probability of exploitation in the next 30 days.

How do I fix CVE-2024-9021?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-9021?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST