CVE-2021-24556

Email Subscriber <= 1.1 - Unauthenticated Stored Cross-Site Scripting (XSS)

MEDIUM
6.1
CVSS Score
Published: August 23, 2021 at 11:10 AM UTC
Updated: June 17, 2026 at 03:40 AM UTC
1 product affected across 1 vendorEmail Subscriber

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Severity
MEDIUM6.1
Exploit prediction
EPSS 1%

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-79

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