CVE-2023-47545 MEDIUM

CVE-2023-47545: WordPress Forms for Mailchimp by Optin Cat Plugin <= 2.5.4 is vulnerable to Cross Site Scripting (XSS)

Vendor Fatcat Apps
Product Forms for Mailchimp by Optin Cat – Grow Your MailChimp List
Weakness CWE-79 · XSS
Published November 14, 2023
Last update April 28, 2026
View on NVD All CVEs

CVSS base score

5.9/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction Required
Confidentiality Low
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

Auth. (editor+) Stored Cross-Site Scripting (XSS) vulnerability in Fatcat Apps Forms for Mailchimp by Optin Cat – Grow Your MailChimp List plugin <= 2.5.4 versions.

Explanation of Vulnerability in Simple Terms

02Summary

Forms for Mailchimp by Optin Cat versions up to 2.5.4 contain a stored cross-site scripting (XSS) vulnerability. An authenticated admin can inject malicious scripts into form fields that execute in other users' browsers when they view the form. The vulnerability requires admin privileges and user interaction to exploit, but can affect site visitors and other administrators.

What an attacker can do

03Attacker Capabilities

Inject malicious scripts that run in other users' browsers when they interact with the form.

Potential impact on your site

04Site Impact

A compromised admin account can inject scripts to steal data from site visitors or other admins.

Conditions required to exploit

05Prerequisites

Admin-level access to the site and the victim must view the affected form or page.

Key dates

06Disclosure timeline

November 14, 2023 CVE published
April 28, 2026 Record updated

Related vulnerabilities

08Related CVE

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