CVE-2021-24556

MediumCVSS 6.1/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 6.1/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Weakness enumeration

CWE-79

Affected software

Vendor	Product	Versions
Unknown	Email Subscriber	>= 1.1, <= 1.1

References

https://codevigilant.com/disclosure/2021/wp-plugin-email-subscriber/Exploit, Third Party Advisory
https://wpscan.com/vulnerability/f050aedc-f79f-4b27-acac-0cdb33b25af8Exploit, Third Party Advisory
https://codevigilant.com/disclosure/2021/wp-plugin-email-subscriber/Exploit, Third Party Advisory
https://wpscan.com/vulnerability/f050aedc-f79f-4b27-acac-0cdb33b25af8Exploit, Third Party Advisory

Timeline

Published: Aug 23, 2021
Last modified: Jun 17, 2026
NVD status: Modified

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