PT-2026-26799 · WordPress · Logo Slider – Logo Carousel

Published 2026-03-21 · Updated 2026-03-21 · CVE-2026-0609

Positive Technologies (AI Summary)

CVSS v3.1

6.4

Medium

Base vector

AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions The Logo Slider – Logo Carousel, Logo Showcase & Client Logo Slider Plugin versions prior to 4.9.1

Description The plugin is susceptible to Stored Cross-Site Scripting due to inadequate input sanitization and output escaping within the 'logo-slider' shortcode, specifically concerning the image alt text. This allows authenticated attackers with author-level access or higher to inject malicious web scripts into pages. These scripts will then execute whenever a user accesses the compromised page.

Recommendations Update to version 4.9.1 or later.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-0609

Affected Products

Logo Slider – Logo Carousel

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-0609 · Security Note
• https://plugins.trac.wordpress.org/browser/logo-slider-wp/tags/4.9.0/public/class-logo-slider-wp-public.php?marks=309,314#L309 · Note
• https://twitter.com/CVEnew/status/2035237251605799000 · Twitter Post
• https://wordfence.com/threat-intel/vulnerabilities/id/b94f388a-c4af-4d3a-bd41-9b2d5d990672?source=cve · Note