What’s Vulnerable › Vulnerabilities

CVE-2024-4335: Rank Math SEO with AI Best SEO Tools <= 1.0.217 - Authenticated (Contributor+) Stored Cross-Site Scripting

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-05-14 · updated 2026-06-17
• Weakness: CWE-79

Description

The Rank Math SEO with AI Best SEO Tools plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘textAlign’ parameter in versions up to, and including, 1.0.217 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Affected products

• Rank Math SEO: before 1.0.218 — fixed in 1.0.218

How to fix

Upgrade to a fixed version: Rank Math SEO 1.0.218. Check the vendor advisory for mitigations.

References

• https://plugins.trac.wordpress.org/browser/seo-by-rank-math/tags/1.0.217/includes/modules/schema/blocks/class-block.php#L64
• https://plugins.trac.wordpress.org/changeset/3080259/#file26
• https://www.wordfence.com/threat-intel/vulnerabilities/id/96eba67c-58e7-4eea-84d4-9b3bb275b42d?source=cve
• https://plugins.trac.wordpress.org/browser/seo-by-rank-math/tags/1.0.217/includes/modules/schema/blocks/class-block.php#L64
• https://plugins.trac.wordpress.org/changeset/3080259/#file26
• https://www.wordfence.com/threat-intel/vulnerabilities/id/96eba67c-58e7-4eea-84d4-9b3bb275b42d?source=cve

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