CVE-2025-13841
Stored XSS in Smart App Banners WordPress Plugin Allows Script Injection
Publication date: 2026-01-07
Last updated on: 2026-01-07
Assigner: Wordfence
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| wp_plugins | smart_app_banners | to 1.2 (inc) |
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?
This vulnerability is a Stored Cross-Site Scripting (XSS) issue in the Smart App Banners plugin for WordPress. It occurs via the 'size' and 'verticalalign' parameters of the 'app-store-download' shortcode in versions up to 1.2. The problem arises because the plugin does not properly sanitize or escape user-supplied input for these parameters, allowing authenticated users with Contributor-level access or higher to inject malicious scripts that execute when other users view the affected pages.
How can this vulnerability impact me? :
An attacker with Contributor-level access or higher can exploit this vulnerability to inject arbitrary scripts into pages. These scripts execute in the context of users who visit the injected pages, potentially leading to theft of user credentials, session hijacking, defacement, or other malicious actions that compromise the security and integrity of the website and its users.
What immediate steps should I take to mitigate this vulnerability?
Update the Smart App Banners plugin for WordPress to a version later than 1.2 where the vulnerability is fixed. Additionally, restrict Contributor-level access and above until the update is applied to prevent exploitation via the 'size' and 'verticalalign' parameters in the 'app-store-download' shortcode.