CVE-2026-0609
Stored XSS in Logo Slider WordPress Plugin Allows Script Injection
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
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 Logo Slider – Logo Carousel, Logo Showcase & Client Logo Slider Plugin for WordPress has a Stored Cross-Site Scripting (XSS) vulnerability in all versions up to and including 4.9.0. This vulnerability arises because the plugin does not properly sanitize and escape the image alt text used in its 'logo-slider' shortcode.
An authenticated attacker with author-level access or higher can exploit this flaw by injecting malicious scripts into the image alt text. These scripts are then stored and executed whenever any user accesses the affected page, potentially compromising their security.
How can this vulnerability impact me? :
This vulnerability allows an attacker with author-level access to inject arbitrary malicious scripts into pages via the image alt text. When other users visit these pages, the injected scripts execute in their browsers.
- It can lead to theft of user credentials or session tokens.
- It may enable unauthorized actions on behalf of users (such as changing settings or performing actions within the site).
- It can result in defacement or manipulation of website content.
- It undermines user trust and site integrity.
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?
To mitigate this vulnerability, you should update the Logo Slider – Logo Carousel, Logo Showcase & Client Logo Slider Plugin to version 4.9.0 or later, where the stored Cross-Site Scripting (XSS) vulnerability has been fixed.
The fix involves sanitizing and escaping user inputs related to image alt text and other shortcode attributes to prevent malicious script injection.
Additionally, restrict author-level access and above to trusted users only, as the vulnerability requires authenticated users with author-level permissions to exploit.