CVE-2021-24412

Name: CVE-2021-24412
Creator: NVD / NIST
Published: 2021-10-18T14:15:08.757+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 0.63%

Last modified Jun 17, 2026

CVE-2021-24412 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. The Html5 Audio Player – Audio Player for WordPress plugin before 2.1.3 does not sanitise or validate the parameters from its shortcode, allowing users with a role as low as contributor to set Cross-Site Scripting payload in them which will be triggered in the page/s with the embed malicious shortcode. EPSS estimates a 0.63% chance of exploitation in the next 30 days.

Description

The Html5 Audio Player – Audio Player for WordPress plugin before 2.1.3 does not sanitise or validate the parameters from its shortcode, allowing users with a role as low as contributor to set Cross-Site Scripting payload in them which will be triggered in the page/s with the embed malicious shortcode

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

0.63%

45.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Bplugins	Html5 Audio Player	< 2.1.3

References

https://wpscan.com/vulnerability/c4ed3e52-cbe0-46dc-ab43-65de78cfb225Exploit, Third Party Advisory
https://wpscan.com/vulnerability/c4ed3e52-cbe0-46dc-ab43-65de78cfb225Exploit, Third Party Advisory

Timeline

Published: Oct 18, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-24412?

How severe is CVE-2021-24412?

CVE-2021-24412 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.63% probability of exploitation in the next 30 days.

How do I fix CVE-2021-24412?

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-2021-24412?

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

Scan your code now

Source: NVD / NIST