CVE-2025-3858 MEDIUM

CVE-2025-3858: Formality <= 1.5.8 - Authenticated (Contributor+) Stored Cross-Site Scripting via align Parameter

Vendor Michelegiorgi
Product Formality
Weakness CWE-79 · XSS
Published May 2, 2025
Last update April 8, 2026

CVSS base score

6.4/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality Low
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

The Formality plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘align’ parameter in all versions up to, and including, 1.5.8 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Explanation of Vulnerability in Simple Terms

02Summary

Formality versions up to 1.5.8 contain a cross-site scripting (XSS) vulnerability that allows authenticated users to inject malicious scripts affecting other users. The vulnerability has a changed scope, meaning the impact extends beyond the vulnerable component itself. Site administrators should update to version 1.5.9 or later to remediate this issue.

What an attacker can do

03Attacker Capabilities

Inject malicious scripts that execute in other users' browsers and affect site functionality.

Potential impact on your site

04Site Impact

Authenticated users can inject scripts affecting other users' sessions and site behavior.

Conditions required to exploit

05Prerequisites

Attacker must have a low-privilege account on the site; no user interaction required from victims.

Key dates

06Disclosure timeline

May 2, 2025 CVE published
April 8, 2026 Record updated