CVE-2026-9629
MediumCVSS 6.4Exploitation Probability (EPSS)
Low risk11th percentile — higher than 11% of all known CVEs
Summary
The Canvas plugin for WordPress is vulnerable to Stored Cross-Site Scripting (XSS) via the 'tag' parameter in all versions up to and including 2.5.2 due to insufficient input sanitization and output escaping.
Risk Assessment
Authenticated attackers with contributor-level access and above can inject arbitrary web scripts that will execute whenever a user accesses an injected page, potentially leading to data theft or account takeover.
Recommendation
It is recommended to update the Canvas plugin to the latest version to mitigate this vulnerability and implement additional security measures such as Content Security Policy.
Original NVD description (English source)
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.