CVSS base score
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
The My Email Shortcode plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'subject' shortcode attribute in the 'my-email' shortcode in all versions up to, and including, 0.91 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
My Email Shortcode versions 0.91 and earlier contain a cross-site scripting (XSS) vulnerability that allows authenticated users to inject malicious scripts affecting other users. The vulnerability exists because user input is not properly sanitized before being displayed. An attacker with low-level site access can craft malicious content that executes in other users' browsers when they view affected pages.
What an attacker can do
Inject malicious scripts that execute in other users' browsers and steal their session data or perform actions on their behalf.
Potential impact on your site
Authenticated users can inject scripts affecting other site visitors, risking account compromise and unauthorized actions across your site.
Conditions required to exploit
Attacker must have a low-level user account on the site; no user interaction required from the victim.
Key dates
External resources
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