CVE-2025-11379 MEDIUM

CVE-2025-11379: WebP Express <= 0.25.9 - Unauthenticated Information Exposure

Vendor Roselldk
Product WebP Express
Weakness CWE-200 · Info exposure
Published December 4, 2025
Last update April 8, 2026

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality Low
Integrity None

CVSS vector

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

What the vulnerability does

01Description

The WebP Express plugin for WordPress is vulnerable to information exposure via config files in all versions up to, and including, 0.25.9. This is due to the plugin not properly randomizing the name of the config file to prevent direct access on NGINX. This makes it possible for unauthenticated attackers to extract configuration data.

Explanation of Vulnerability in Simple Terms

02Summary

WebP Express versions 0.25.9 and earlier expose sensitive information that can be accessed over the network without authentication. An attacker can retrieve this data directly without user interaction. The vulnerability affects the plugin's information handling and may expose configuration details or other non-public data stored by the plugin.

What an attacker can do

03Attacker Capabilities

Read sensitive information exposed by the plugin without needing to log in.

Potential impact on your site

04Site Impact

Sensitive plugin data or configuration details may be publicly readable to anyone on the internet.

Conditions required to exploit

05Prerequisites

Network access to the site; no authentication or user interaction required.

Key dates

06Disclosure timeline

December 4, 2025 CVE published
April 8, 2026 Record updated