CVE-2026-76789CWE-79cross-site-scripting

CVE-2026-76789

High · published August 22, 2026

CVSS v3.1
8.8
EPSS
1%
Percentile
42.3
In the wild
Unconfirmed
What it is

The Slider Hero with Video Background, Animation WordPress plugin before 9.1.3 does not have authorisation and nonce checks on two of its request handlers, and does not escape a stored setting before outputting it, allowing unauthenticated users to store malicious JavaScript which will be executed in the context of an administrator viewing the Slider Hero with Video Background, Animation WordPress plugin before 9.1.3's admin area, as well as any visitor of a page embedding a slider.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00505 · 42.3th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-08-22T10:16Z
References (1)
EPSS history
Timeline
  • 22 AUG 06:00Z
    Slider Hero < 9.1.3 - Unauthenticated Stored XSS via Slider Type Change and Add-Slider Handlers
    cvelistv5