CVE-2026-76789

Slider Hero < 9.1.3 - Unauthenticated Stored XSS via Slider Type Change and Add-Slider Handlers

Published Aug 22, 2026 CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Wordpress-extensions
Wordpress-extensions slider Hero
Vendors & Products Wordpress-extensions
Wordpress-extensions slider Hero
Type Values Removed Values Added
Weaknesses CWE-80
CWE-863
Type Values Removed Values Added
Weaknesses CWE-79
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Weaknesses CWE-80
CWE-863
Type Values Removed Values Added
Description 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.
Title Slider Hero < 9.1.3 - Unauthenticated Stored XSS via Slider Type Change and Add-Slider Handlers
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
WPScan
Published
Updated
Aug 23, 2026, 3:33 PM
Reserved
Aug 19, 2026, 5:55 PM
Status
Deferred
Published
Aug 22, 2026, 6:16 AM
Modified
Oct 12, 2026, 4:10 PM