Unauthenticated Cross Site Scripting Vulnerability in Form Block Plugin by WordPress
CVE-2026-104814

7.1HIGH

Key Information:

Vendor

WordPress
Status
Form Block
Vendor
CVE Published:
6 October 2026

What is CVE-2026-104814?

The Form Block plugin for WordPress contains an unauthenticated Cross Site Scripting (XSS) vulnerability that affects versions 1.8.1 and earlier. This flaw allows attackers to inject malicious scripts into web pages that can be executed in the context of users' browsers. This exploitation can lead to various harmful consequences, including the theft of sensitive information and unauthorized actions on behalf of users.

Affected Version(s)

Form Block <= 1.8.1

References

https://patchstack.com/database/wordpress/plugin/form-blo...
vdb-entry

CVSS V3.1

Score:
7.1
Severity:
HIGH
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

V1T | Patchstack Bug Bounty Program
.