What’s Vulnerable › Vulnerabilities
CVE-2026-0609: Logo Slider <= 4.9.0 - Authenticated (Author+) Stored Cross-Site Scripting via 'logo-slider' Shortcode
- Severity: medium (CVSS 6.4 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-03-21 · updated 2026-10-15
- Weakness: CWE-79
Description
The Logo Slider – Logo Carousel, Logo Showcase & Client Logo Slider Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the image alt text in all versions up to, and including, 4.9.0 due to insufficient input sanitization and output escaping in the 'logo-slider' shortcode. This makes it possible for authenticated attackers, with author level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Affected products
References
- https://plugins.trac.wordpress.org/browser/logo-slider-wp/tags/4.9.0/public/class-logo-slider-wp-public.php?marks=309,314#L309
- https://plugins.trac.wordpress.org/changeset/3509199/logo-slider-wp/trunk/public/class-logo-slider-wp-public.php
- https://www.wordfence.com/threat-intel/vulnerabilities/id/b94f388a-c4af-4d3a-bd41-9b2d5d990672?source=cve
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