CVE-2021-24245

Name: CVE-2021-24245
Creator: NVD / NIST
Published: 2021-05-06T13:15:11.53+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 5.72%

Last modified Jun 17, 2026

CVE-2021-24245 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. The Stop Spammers WordPress plugin before 2021.9 did not escape user input when blocking requests (such as matching a spam word), outputting it in an attribute after sanitising it to remove HTML tags, which is not sufficient and lead to a reflected Cross-Site Scripting issue.. EPSS estimates a 5.72% chance of exploitation in the next 30 days.

Description

The Stop Spammers WordPress plugin before 2021.9 did not escape user input when blocking requests (such as matching a spam word), outputting it in an attribute after sanitising it to remove HTML tags, which is not sufficient and lead 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

5.72%

92.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Trumani	Stop Spammers	< 2021.9

References

http://packetstormsecurity.com/files/162623/WordPress-Stop-Spammers-2021.8-Cross-Site-Scripting.htmlExploit, Third Party Advisory, VDB Entry
https://wpscan.com/vulnerability/5e7accd6-08dc-4c6e-9d19-73e2d7e97735Exploit, Third Party Advisory
http://packetstormsecurity.com/files/162623/WordPress-Stop-Spammers-2021.8-Cross-Site-Scripting.htmlExploit, Third Party Advisory, VDB Entry
https://wpscan.com/vulnerability/5e7accd6-08dc-4c6e-9d19-73e2d7e97735Exploit, Third Party Advisory

Timeline

Published: May 6, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-24245?

How severe is CVE-2021-24245?

CVE-2021-24245 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 5.72% probability of exploitation in the next 30 days.

How do I fix CVE-2021-24245?

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-2021-24245?

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

Scan your code now

Source: NVD / NIST