CVE-2025-30838 MEDIUM

CVE-2025-30838: WordPress Cozy Blocks plugin <= 2.1.6 - Cross Site Scripting (XSS) vulnerability

Vendor Cozythemes
Product Cozy Blocks
Weakness CWE-79 · XSS
Published March 27, 2025
Last update April 28, 2026
View on NVD All CVEs

CVSS base score

6.5/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction Required
Confidentiality Low
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/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 CozyThemes Cozy Blocks cozy-addons allows Stored XSS.This issue affects Cozy Blocks: from n/a through <= 2.1.6.

Explanation of Vulnerability in Simple Terms

02Summary

Cozy Blocks versions 2.1.6 and earlier contain a stored cross-site scripting (XSS) vulnerability. An authenticated user with low privileges can inject malicious scripts that execute in the browsers of other site visitors, including administrators. The vulnerability requires user interaction to trigger and affects the integrity and confidentiality of the site.

What an attacker can do

03Attacker Capabilities

Inject malicious scripts that run in other users' browsers, potentially stealing session tokens or modifying page content.

Potential impact on your site

04Site Impact

Authenticated users can compromise other visitors' sessions or deface site content without admin intervention.

Conditions required to exploit

05Prerequisites

Attacker must have a low-privilege authenticated account and the victim must visit a page containing the injected payload.

Key dates

06Disclosure timeline

March 27, 2025 CVE published
April 28, 2026 Record updated