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 Theater for WordPress plugin for WordPress is vulnerable to Reflected Cross-Site Scripting due to the use of add_query_arg without appropriate escaping on the URL in all versions up to, and including, 0.18.6.2. 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
Theater for WordPress versions up to 0.18.6.2 contain a cross-site scripting (XSS) vulnerability that allows attackers to inject malicious scripts into the site. An attacker can craft a malicious link that, when clicked by a site visitor, executes JavaScript in the victim's browser. This can lead to session hijacking, credential theft, or malware distribution.
What an attacker can do
Inject and execute malicious JavaScript in visitors' browsers to steal credentials or hijack sessions.
Potential impact on your site
Visitors to your site could have their sessions hijacked or credentials stolen if they click attacker-controlled links.
Conditions required to exploit
Attacker must trick a site visitor into clicking a malicious link (user interaction required).
Key dates
External resources
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