CVE-2026-4022
Stored XSS in Show Posts List WordPress Plugin
Publication date: 2026-03-21
Last updated on: 2026-03-21
Assigner: Wordfence
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| show_posts | list | to 1.1.0 (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 vulnerability exists in the Show Posts list – Easy designs, filters and more plugin for WordPress, specifically in the 'swiftpost-list' shortcode's 'post_type' attribute. It is a Stored Cross-Site Scripting (XSS) vulnerability caused by insufficient input sanitization and output escaping of user-supplied attributes.
This means that authenticated users with contributor-level access or higher can inject malicious web scripts into pages. These scripts will execute whenever any user accesses the affected page.
How can this vulnerability impact me? :
This vulnerability can allow attackers with contributor-level access to inject arbitrary scripts into web pages, which will run in the context of users visiting those pages.
- It can lead to theft of user credentials or session tokens.
- It can enable unauthorized actions on behalf of users.
- It can compromise the integrity and trustworthiness of the affected website.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
I don't know