CVE-2026-1275CWE-79

Multi Post Carousel by Category <= 1.4 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'slides' Shortcode Attribute

Medium · published March 21, 2026

CVSS v3.1
6.4
EPSS
0%
Percentile
14.7
In the wild
Unconfirmed
What it is

The Multi Post Carousel by Category plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'slides' shortcode attribute in all versions up to, and including, 1.4. This is due to insufficient input sanitization and output escaping on the user-supplied 'slides' parameter in the post_slides_shortcode function. 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.

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
0.00244 · 14.7th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-03-21T03:26Z
EPSS history
Timeline
  • 21 MAR 03:26Z
    Multi Post Carousel by Category <= 1.4 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'slides' Shortcode Attribute
    cvelistv5