CVE-2021-24808

Name: CVE-2021-24808
Creator: NVD / NIST
Published: 2021-11-01T09:15:09.587+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.91%

Last modified Jun 17, 2026

CVE-2021-24808 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. The BP Better Messages WordPress plugin before 1.9.9.41 sanitise (with sanitize_text_field) but does not escape the 'subject' parameter before outputting it back in an attribute, leading to a Reflected Cross-Site Scripting issue. EPSS estimates a 0.91% chance of exploitation in the next 30 days.

Description

The BP Better Messages WordPress plugin before 1.9.9.41 sanitise (with sanitize_text_field) but does not escape the 'subject' parameter before outputting it back in an attribute, leading to a Reflected Cross-Site Scripting issue

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

0.91%

55.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Wordplus	Better Messages	< 1.9.9.41

References

https://plugins.trac.wordpress.org/changeset/2605772/bp-better-messages/trunk/views/layout-new.phpPatch, Third Party Advisory
https://wpscan.com/vulnerability/53ff82ec-00ec-4b20-8f60-db9db8c025b4Exploit, Third Party Advisory
https://plugins.trac.wordpress.org/changeset/2605772/bp-better-messages/trunk/views/layout-new.phpPatch, Third Party Advisory
https://wpscan.com/vulnerability/53ff82ec-00ec-4b20-8f60-db9db8c025b4Exploit, Third Party Advisory

Timeline

Published: Nov 1, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-24808?

How severe is CVE-2021-24808?

CVE-2021-24808 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.91% probability of exploitation in the next 30 days.

How do I fix CVE-2021-24808?

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-2021-24808?

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

Scan your code now

Source: NVD / NIST