blogsafe.org My Downloads

BlogSafe.org

WordPress CVEs

Search and review WordPress-related vulnerability records.

← Back to CVE list

CVE-2021-24556

MEDIUM 6.1 CVSS 3.1
Published
August 23, 2021
Last modified
June 17, 2026
NVD status
Modified
Reported by
contact@wpscan.com
Weakness
CWE-79
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Description

The kento_email_subscriber_ajax AJAX action of the Email Subscriber WordPress plugin through 1.1, does not properly sanitise, validate and escape the submitted subscribe_email and subscribe_name POST parameters, inserting them in the DB and then outputting them back in the Subscriber list (/wp-admin/edit.php?post_type=kes_campaign&page=kento_email_subscriber_list_settings), leading a Stored XSS issue.

Affected WordPress components

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • Unknown Email Subscriber — From 1.1 (including) to 1.1 (including)
  • email-subscriber_project email-subscriber — Up to and including 1.1

References

  • codevigilant.com https://codevigilant.com/disclosure/2021/wp-plugin-email-subscriber/ Exploit, Third Party Advisory
  • wpscan.com https://wpscan.com/vulnerability/f050aedc-f79f-4b27-acac-0cdb33b25af8 Exploit, Third Party Advisory
  • nvd.nist.gov Official NVD record