CVE-2026-8877
Stored XSS in Responsive Video Embedder WordPress Plugin
Publication date: 2026-05-27
Last updated on: 2026-05-27
Assigner: Wordfence
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| wp_media | responsive_video_embedder | to 0.1 (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?
The Responsive Video Embedder plugin for WordPress has a Stored Cross-Site Scripting (XSS) vulnerability in versions up to and including 0.1. This occurs because the plugin does not properly sanitize or escape user-supplied attributes, specifically 'id' and 'list', in the rem_video shortcode. These attributes are directly inserted into an iframe's src attribute without escaping, 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? :
This vulnerability can allow attackers with contributor-level access to inject arbitrary malicious scripts into pages. When other users access these pages, the injected scripts execute in their browsers, potentially leading to theft of sensitive information, session hijacking, or other malicious actions. This compromises the security and integrity of the affected WordPress site and its users.