CVE-2026-5340
Stored XSS in Fancy Image Show WordPress Plugin
Publication date: 2026-05-12
Last updated on: 2026-05-12
Assigner: Wordfence
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
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 Fancy Image Show plugin for WordPress has a Stored Cross-Site Scripting (XSS) vulnerability in its `fancy-img-show` shortcode. This vulnerability exists in all versions up to and including 9.1 because the plugin does not properly sanitize or escape user-supplied attributes. As a result, authenticated users with contributor-level access or higher can inject malicious scripts into pages.
These injected scripts execute whenever any user accesses the affected page, potentially compromising the security of the site and its visitors.
How can this vulnerability impact me? :
This vulnerability allows attackers with contributor-level access or above to inject arbitrary web scripts into pages. These scripts execute in the browsers of users who visit the infected pages.
- It can lead to theft of user credentials or session tokens.
- It can enable unauthorized actions on behalf of users.
- It can result in defacement or manipulation of website content.
- It may damage the reputation of the website and reduce user trust.