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Is my WordPress plugin safe?
Type a plugin or theme and the version you run, and we’ll show every known vulnerability that affects it, from the 253,029 records in our vulnerability database. The version is listed under Plugins in your WordPress dashboard.
Plugin · simple-seo-slideshow
Simple SEO Slideshow
1 known vulnerability on record. Add your version above to see which ones affect you.
Jun 5, 2026Simple SEO Slideshow: Stored Cross-Site ScriptingCVE-2026-8900 · affects up to 1.2.8 · reported by WordfenceMedium 6.4
The Simple SEO Slideshow plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Shortcode Attributes in all versions up to, and including, 1.2.8 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. WordPress KSES does not strip malicious shortcode attribute values on post save, allowing contributor-level users to persist payloads that execute for any visitor, including administrators reviewing the post.
NVD recordplugins.trac.wordpress.orgplugins.trac.wordpress.org
Versions are matched against the affected ranges published with each record. A plugin can ship a fix under its own numbering, so if something looks off, check the linked record. Want the whole site checked at once? Run the free website check.
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