CVE-2025-11811
BaseFortify
Publication date: 2025-10-22
Last updated on: 2025-10-22
Assigner: Wordfence
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| matthewmarichiba | simple_youtube_shortcode | 1.1.3 |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-79 | The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
CVE-2025-11811 is a Stored Cross-Site Scripting (XSS) vulnerability in the Simple Youtube Shortcode WordPress plugin (up to version 1.1.3). It occurs because the plugin does not properly sanitize or escape input in the 'id' attribute of the 'embed_youtube' shortcode. This allows authenticated users with contributor-level access or higher to inject malicious scripts that execute whenever a user views the affected page.
How can this vulnerability impact me? :
This vulnerability can allow attackers with contributor-level access to inject arbitrary JavaScript into pages, which will execute in the browsers of users who visit those pages. This can lead to theft of user credentials, session hijacking, defacement, or distribution of malware, compromising the security and integrity of the affected WordPress site and its users.
What immediate steps should I take to mitigate this vulnerability?
To mitigate this vulnerability, immediately disable or remove the Simple Youtube Shortcode plugin version 1.1.3 or earlier from your WordPress installation. Since the plugin has been temporarily closed and removed from download availability pending a security review, do not reinstall it until a secure version is released. Additionally, restrict contributor-level access and above to trusted users only to reduce the risk of exploitation. [2]