CVE-2023-49170 HIGH

CVE-2023-49170: WordPress Forms by CaptainForm Plugin <= 2.5.3 is vulnerable to Cross Site Scripting (XSS)

Vendor Captainform
Product Forms by CaptainForm – Form Builder for WordPress
Weakness CWE-79 · XSS
Published December 15, 2023
Last update April 28, 2026

CVSS base score

7.1/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality Low
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in captainform Forms by CaptainForm – Form Builder for WordPress allows Reflected XSS.This issue affects Forms by CaptainForm – Form Builder for WordPress: from n/a through 2.5.3.

Explanation of Vulnerability in Simple Terms

02Summary

Forms by CaptainForm contains a stored cross-site scripting (XSS) vulnerability in versions up to 2.5.3. An attacker can inject malicious scripts into form fields that execute when site visitors or administrators view the form or its submissions. The vulnerability requires user interaction to trigger and can affect multiple users across the site.

What an attacker can do

03Attacker Capabilities

Inject malicious scripts that run in visitors' browsers when they view forms or submissions.

Potential impact on your site

04Site Impact

Visitors and admins viewing forms could have their sessions hijacked, credentials stolen, or be redirected to malicious sites.

Conditions required to exploit

05Prerequisites

Attacker must have the ability to create or edit forms in the plugin; victim must view the affected form or submission.

Key dates

06Disclosure timeline

December 15, 2023 CVE published
April 28, 2026 Record updated

Related vulnerabilities

08Related CVE