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 SH Email Alert plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'mid' parameter in all versions up to, and including, 1.0 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
SH Email Alert versions 1.0 and earlier contain a cross-site scripting (XSS) vulnerability that allows attackers to inject malicious scripts into web pages viewed by other users. The vulnerability requires user interaction—typically clicking a malicious link—and can affect users across different parts of the application. An attacker needs no authentication to exploit this flaw.
What an attacker can do
Inject malicious JavaScript that runs in other users' browsers, stealing session tokens or performing actions on their behalf.
Potential impact on your site
Users visiting affected pages may have their sessions compromised or be redirected to phishing sites.
Conditions required to exploit
Victim must click a malicious link or visit an attacker-controlled page; no authentication required.
Key dates
External resources
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