#VU109817 Stored cross-site scripting in Slim SEO - Fast & Automated WordPress SEO Plugin - CVE-2025-4611
Published: May 26, 2025
Vulnerability identifier: #VU109817
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-4611
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Slim SEO - Fast & Automated WordPress SEO Plugin
Slim SEO - Fast & Automated WordPress SEO Plugin
Software vendor:
eLightUp
eLightUp
Description
The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data in the slim_seo_breadcrumbs shortcode. A remote user can inject and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
Remediation
Install updates from vendor's website.
External links
- https://github.com/elightup/slim-seo/commit/b475dceff3a6bd94335d5a79eb12cdd92e2c8350
- https://plugins.trac.wordpress.org/browser/slim-seo/tags/4.5.3/src/Breadcrumbs.php#L109
- https://plugins.trac.wordpress.org/browser/slim-seo/tags/4.5.3/src/Breadcrumbs.php#L37
- https://plugins.trac.wordpress.org/browser/slim-seo/tags/4.5.3/src/Breadcrumbs.php#L85
- https://plugins.trac.wordpress.org/changeset/3296099/
- https://wordpress.org/plugins/slim-seo/#developers
- https://www.wordfence.com/threat-intel/vulnerabilities/id/6318a1cf-716f-450c-a1c2-497de8095daa?source=cve