CVE-2021-24556

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.

CVSS v3.1

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

CVSS v2.0

4.3 MEDIUMAV:N/AC:M/Au:N/C:N/I:P/A:N

EPSS

1.34% chance of exploitation in the next 30 days, 69th percentile

Published

2021-08-23

Updated

2024-08-03

Proof-of-concept exploits (2)

• https://codevigilant.com/disclosure/2021/wp-plugin-email-subscriber/
• https://wpscan.com/vulnerability/f050aedc-f79f-4b27-acac-0cdb33b25af8

References

• CVE Record
• NVD entry

Related

• CVE-2021-24555
• CVE-2021-24557
• CVE-2021-24554
• CVE-2021-24558
• CVE-2021-24553
• CVE-2021-24559