CVE-2026-1395
Stored XSS in Gutentools WordPress Plugin Post Slider Block
Publication date: 2026-04-22
Last updated on: 2026-04-22
Assigner: Wordfence
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| gutentools | gutentools | to 1.1.3 (inc) |
| gutentools | plugin | to 1.1.3 (inc) |
| gutentools | gutentools_plugin | to 1.1.3 (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 Gutentools plugin for WordPress has a Stored Cross-Site Scripting (XSS) vulnerability in the Post Slider block's block_id attribute in all versions up to and including 1.1.3.
This vulnerability exists because the plugin does not properly sanitize input or escape output, and a custom unescaping routine reintroduces dangerous characters.
As a result, authenticated users with Contributor-level access or higher can inject malicious web scripts into pages, which will execute whenever any user views those pages.
How can this vulnerability impact me? :
This vulnerability allows attackers with Contributor-level access or above to inject arbitrary scripts into WordPress pages.
These scripts can execute in the browsers of users who visit the affected pages, potentially leading to theft of user credentials, session hijacking, defacement, or distribution of malware.
Because the attack is stored, the malicious code persists and affects all users who access the compromised content.