Medium severity6.4OSV Advisory· Published May 21, 2025· Updated Jun 17, 2026
CVE-2025-4611
CVE-2025-4611
Description
The Slim SEO – Fast & Automated WordPress SEO Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's slim_seo_breadcrumbs shortcode in all versions up to, and including, 4.5.3 due to insufficient input sanitization and output escaping on user supplied attributes. 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.
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Affected products
2Patches
Vulnerability mechanics
References
7- github.com/elightup/slim-seo/commit/b475dceff3a6bd94335d5a79eb12cdd92e2c8350nvd
- plugins.trac.wordpress.org/browser/slim-seo/tags/4.5.3/src/Breadcrumbs.phpnvd
- plugins.trac.wordpress.org/browser/slim-seo/tags/4.5.3/src/Breadcrumbs.phpnvd
- plugins.trac.wordpress.org/browser/slim-seo/tags/4.5.3/src/Breadcrumbs.phpnvd
- plugins.trac.wordpress.org/changeset/3296099/nvd
- wordpress.org/plugins/slim-seo/nvd
- www.wordfence.com/threat-intel/vulnerabilities/id/6318a1cf-716f-450c-a1c2-497de8095daanvd
News mentions
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