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wordfence / plugin · wordpress-seo
Yoast SEO – Advanced SEO with real-time guidance and built-in AI
wordpress-seo
total installs
10,000,000
total vulns
2
critical
0
high
0
medium
2
low
0
latest vuln
—
patched
2
unpatched
0
avg time to patch
—
vulnerabilities
(2)
Yoast SEO <= 27.1.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'jsonText' Block Attribute
medium
✓ patched
cve id
CVE-2026-3427 ↗
cvss score
6.4
cwe
CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
published
Mar 21, 2026
The Yoast SEO – Advanced SEO with real-time guidance and built-in AI plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the the `jsonText` block attribute in all versions up to, and including, 27.1.1 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.
Yoast SEO <= 26.8 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'yoast-schema' Block Attribute
medium
✓ patched
cve id
CVE-2026-1293 ↗
cvss score
6.4
cwe
CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
published
Feb 5, 2026
The Yoast SEO – Advanced SEO with real-time guidance and built-in AI plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the the `yoast-schema` block attribute in all versions up to, and including, 26.8 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.