Medium severity6.4NVD Advisory· Published Aug 26, 2025· Updated Apr 15, 2026

CVE-2025-9277

Description

The SiteSEO – SEO Simplified plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the broken preg_replace expression in all versions up to, and including, 1.2.7 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.

Affected products

WordPress/Siteseollm-fuzzy
Range: <=1.2.7
Package: https://wordpress.org/plugins/siteseo

Patches

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

plugins.trac.wordpress.org/browser/siteseo/tags/1.2.6/main/advanced.phpnvd
www.wordfence.com/threat-intel/vulnerabilities/id/b8c7cca2-94d2-4a86-bc69-d7b2b0f068banvd

News mentions

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ransomware	0.000