CVE-2026-9629
Deferred Deferred - Pending Action
Stored XSS in Canvas WordPress Plugin

Publication date: 2026-06-13

Last updated on: 2026-06-15

Assigner: Wordfence

Description
The Canvas plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'tag' parameter in all versions up to, and including, 2.5.2 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
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Meta Information
Published
2026-06-13
Last Modified
2026-06-15
Generated
2026-06-17
AI Q&A
2026-06-13
EPSS Evaluated
2026-06-16
NVD
CVE-2026-9629
EUVD
EUVD-2026-36648
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
canvas canvas_plugin to 2.5.2 (inc)
Helpful Resources
Exploitability
CWE
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KEV
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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.
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Executive Summary

The Canvas plugin for WordPress has a Stored Cross-Site Scripting (XSS) vulnerability in the 'tag' parameter in all versions up to and including 2.5.2. This vulnerability exists because the plugin does not properly sanitize input or escape output. As a result, authenticated users with contributor-level access or higher can inject malicious web scripts into pages.

These injected scripts execute whenever any user accesses the compromised page, potentially leading to unauthorized actions or data exposure.

Impact Analysis

This vulnerability allows attackers with contributor-level access or higher to inject arbitrary scripts into web pages. When other users visit these pages, the malicious scripts execute in their browsers.

  • It can lead to theft of user credentials or session tokens.
  • It can enable unauthorized actions on behalf of users.
  • It may result in defacement or manipulation of website content.
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