CVE-2025-11827
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 |
|---|---|---|
| oboxgroup | oboxmedia_ads | 1.9.8 |
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-2025-11827 is a Stored Cross-Site Scripting (XSS) vulnerability in the Oboxmedia Ads WordPress plugin (version 1.9.8 and earlier). It occurs because the plugin does not properly sanitize and escape input parameters 'before_widget' and 'after_widget' in the oboxads-ad-widget shortcode. This allows authenticated users with contributor-level access or higher to inject malicious JavaScript code into pages. When other users visit these pages, the injected scripts execute in their browsers, potentially compromising their security. [3]
How can this vulnerability impact me? :
This vulnerability can allow attackers with contributor-level access or higher to inject arbitrary JavaScript into your WordPress site. This can lead to unauthorized actions such as stealing user session cookies, defacing the website, redirecting users to malicious sites, or performing actions on behalf of other users without their consent. It compromises the integrity and security of your website and its visitors.
How can this vulnerability be detected on my network or system? Can you suggest some commands?
This vulnerability can be detected by checking for the presence of the oboxads-ad-widget shortcode with manipulated 'before_widget' and 'after_widget' parameters in WordPress pages or posts, especially if you have contributor-level access or higher. Since the vulnerability involves Stored Cross-Site Scripting (XSS), you can look for injected scripts in the rendered HTML of pages using this widget. There are no specific commands provided in the resources, but you can manually inspect the page source or use tools like curl or wget to fetch pages and grep for suspicious script tags within widget areas. Additionally, reviewing the WordPress database for shortcode usage with suspicious parameters may help detect exploitation attempts. [3]
What immediate steps should I take to mitigate this vulnerability?
Immediate mitigation steps include removing or disabling the Oboxmedia Ads plugin version 1.9.8 from your WordPress installation, as it has been temporarily closed and removed from download availability pending a security review. Restrict contributor-level and higher user permissions to prevent unauthorized shortcode injection. Monitor and sanitize any existing widget shortcode parameters in your content to remove potentially malicious scripts. Applying updates or patches once available is also recommended. [2, 3]