CVSS base score
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
What the vulnerability does
The Advanced iFrame plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'additional' parameter in version less than, or equal to, 2025.6 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
Advanced iFrame versions up to 2025.6 contain a cross-site scripting (XSS) vulnerability that allows authenticated users to inject malicious scripts. An attacker with low-level site access can craft malicious input that executes in other users' browsers, potentially stealing session tokens or performing actions on their behalf. The vulnerability requires an authenticated account but no user interaction from the victim.
What an attacker can do
Inject malicious scripts that execute in other users' browsers to steal data or perform unauthorized actions.
Potential impact on your site
Any authenticated user, including contributors or subscribers, can inject scripts affecting other site users and administrators.
Conditions required to exploit
Attacker must have a low-privilege authenticated account on the site; no victim interaction required.
Key dates
External resources
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