CVE-2021-24976

Name: CVE-2021-24976
Creator: NVD / NIST
Published: 2022-01-24T08:15:09.043+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.92%

Last modified Jun 17, 2026

CVE-2021-24976 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. The Smart SEO Tool WordPress plugin before 3.0.6 does not sanitise and escape the search parameter before outputting it back in an attribute when the TDK optimisation setting is enabled, leading to a Reflected Cross-Site Scripting. EPSS estimates a 0.92% chance of exploitation in the next 30 days.

Description

The Smart SEO Tool WordPress plugin before 3.0.6 does not sanitise and escape the search parameter before outputting it back in an attribute when the TDK optimisation setting is enabled, leading to a Reflected Cross-Site Scripting

Metrics

CVSS 3.1

6.1/10

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

EPSS Probability

0.92%

55.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Wbolt	Smart Seo Tool	< 3.0.6

References

https://plugins.trac.wordpress.org/changeset/2637305Patch, Third Party Advisory
https://wpscan.com/vulnerability/7d5f58a8-bee4-46be-9c08-d272678338f0Exploit, Third Party Advisory
https://plugins.trac.wordpress.org/changeset/2637305Patch, Third Party Advisory
https://wpscan.com/vulnerability/7d5f58a8-bee4-46be-9c08-d272678338f0Exploit, Third Party Advisory

Timeline

Published: Jan 24, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-24976?

How severe is CVE-2021-24976?

CVE-2021-24976 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.92% probability of exploitation in the next 30 days.

How do I fix CVE-2021-24976?

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-2021-24976?

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

Scan your code now

Source: NVD / NIST