What’s Vulnerable › Vulnerabilities

CVE-2019-25146: DELUCKS SEO < 2.1.8 - Stored Cross Site Scripting

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-06-07 · updated 2026-06-17
• Weakness: CWE-79

Description

The DELUCKS SEO plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the saveSettings() function that had no capability checks in versions up to, and including, 2.1.7 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute whenever a victim accesses the page.

Affected products

• DELUCKS SEO: before 2.1.8 — fixed in 2.1.8

How to fix

Upgrade to a fixed version: DELUCKS SEO 2.1.8. Check the vendor advisory for mitigations.

References

• https://blog.nintechnet.com/vulnerability-in-the-wordpress-delucks-seo-plugin-actively-exploited/
• https://plugins.trac.wordpress.org/changeset/2161211
• https://www.acunetix.com/vulnerabilities/web/wordpress-plugin-delucks-seo-cross-site-scripting-2-1-7/
• https://www.pluginvulnerabilities.com/2019/09/21/hackers-may-already-be-targeting-this-persistent-xss-vulnerability-in-delucks-seo/
• https://www.wordfence.com/threat-intel/vulnerabilities/id/aaa2f738-4764-467c-9544-889ca8ba73d1?source=cve
• https://blog.nintechnet.com/vulnerability-in-the-wordpress-delucks-seo-plugin-actively-exploited/
• https://plugins.trac.wordpress.org/changeset/2161211
• https://www.acunetix.com/vulnerabilities/web/wordpress-plugin-delucks-seo-cross-site-scripting-2-1-7/
• https://www.pluginvulnerabilities.com/2019/09/21/hackers-may-already-be-targeting-this-persistent-xss-vulnerability-in-delucks-seo/
• https://www.wordfence.com/threat-intel/vulnerabilities/id/aaa2f738-4764-467c-9544-889ca8ba73d1?source=cve

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