CVE-2026-0609CWE-79cross-site-scripting

CVE-2026-0609

Medium · published March 21, 2026

CVSS v3.1

6.4

EPSS

Percentile

8.6

In the wild

Unconfirmed

What it is

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.

The record

Technical detail

CVSS v3.1: 6.4 · MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
CVSS v4.0: Not supplied
EPSS: 0.00194 · 8.6th percentile
Weakness: CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published: 2026-03-21T08:16Z

References (3)

https://plugins.trac.wordpress.org/browser/logo-slider-wp/tags/4.9.0/public/class-logo-slider-wp-public.php?marks=309,314#L309 · [email protected]https://plugins.trac.wordpress.org/changeset/3509199/logo-slider-wp/trunk/public/class-logo-slider-wp-public.php · [email protected]https://www.wordfence.com/threat-intel/vulnerabilities/id/b94f388a-c4af-4d3a-bd41-9b2d5d990672?source=cve · [email protected]

EPSS history

Timeline

21 MAR 03:27Z
Logo Slider <= 4.9.0 - Authenticated (Author+) Stored Cross-Site Scripting via 'logo-slider' Shortcode
cvelistv5