CVSS base score
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
What the vulnerability does
The WPLG Default Mail From plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the `$_SERVER['PHP_SELF']` variable in all versions up to, and including, 1.0.0 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.
Explanation of Vulnerability in Simple Terms
WPLG Default Mail From versions up to 1.0.0 contain a cross-site scripting (XSS) vulnerability that allows attackers to inject malicious scripts into web pages. The vulnerability requires user interaction—typically clicking a malicious link—and can affect other users viewing the compromised content. An attacker with no authentication can exploit this to steal session cookies, redirect users, or deface site content.
What an attacker can do
Inject malicious JavaScript that runs in other users' browsers when they visit affected pages.
Potential impact on your site
Site visitors may have their sessions hijacked, credentials stolen, or be redirected to malicious sites; site reputation damaged.
Conditions required to exploit
Victim must click a malicious link or visit a page containing the attacker's payload; no authentication required.
Key dates
External resources
