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Stackable – Page Builder Gutenberg Blocks

stackable-ultimate-gutenberg-blocks
total installs
100,000
total vulns
3
critical
0
high
0
medium
3
low
0
latest vuln
patched
3
unpatched
0
avg time to patch
vulnerabilities (3)
Stackable <= 3.19.5 - Authenticated (Author+) Stored Cross-Site Scripting
medium ✓ patched
cvss score 6.4
cwe CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
published Jan 7, 2026
The Stackable plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 3.19.5 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Stackable <= 3.18.1 - Authenticated (Contributor+) Sensitive Information Exposure
medium ✓ patched
cvss score 4.3
cwe CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
published Sep 26, 2025
The Stackable – Page Builder Gutenberg Blocks plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 3.18.1. This makes it possible for authenticated attackers, with Contributor-level access and above, to extract sensitive user or configuration data.
Stackable <= 3.18.1 - Missing Authorization
medium ✓ patched
cvss score 4.3
cwe CWE-862: Missing Authorization
published Sep 26, 2025
The Stackable plugin for WordPress is vulnerable to unauthorized access due to a missing capability check on a function in versions up to, and including, 3.18.1. This makes it possible for authenticated attackers, with contributor-level access and above, to perform an unauthorized action.