CVE-2026-76789
Slider Hero < 9.1.3 - Unauthenticated Stored XSS via Slider Type Change and Add-Slider Handlers
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.
INFO
Published Date :
Aug. 22, 2026, 6:16 a.m.
Last Modified :
Oct. 12, 2026, 4:10 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-76789
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | HIGH | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
Solution
- Update Slider Hero with Video Background plugin to version 9.1.3 or later.
- Verify that authorization and nonce checks are implemented correctly.
- Ensure all stored settings are properly escaped before output.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-76789.
| URL | Resource |
|---|---|
| https://wpscan.com/vulnerability/f9f5485c-6231-492c-b214-8da87a2bf4d1/ |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-76789 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-76789
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-76789 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-76789 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Translated by [email protected]
Oct. 12, 2026
Action Type Old Value New Value Added Translation Title: Slider Hero with Video Background, Animation, Description: El plugin de WordPress Slider Hero with Video Background, Animation anterior a la versión 9.1.3 no tiene comprobaciones de autorización y nonce en dos de sus manejadores de solicitudes, y no escapa una configuración almacenada antes de mostrarla, lo que permite a usuarios no autenticados almacenar JavaScript malicioso que se ejecutará en el contexto de un administrador que vea el área de administración del plugin de WordPress Slider Hero with Video Background, Animation anterior a la versión 9.1.3, así como cualquier visitante de una página que incruste un slider. -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Aug. 23, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Added CWE CWE-79 Added SSVC {'id': 'CVE-2026-76789', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-08-23T15:26:31.426153Z'} -
New CVE Received by [email protected]
Aug. 22, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Unknown', 'product': 'Slider Hero with Video Background, Animation', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '9.1.3', 'versionType': 'semver'}], 'defaultStatus': 'unaffected'}] 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. Added Reference https://wpscan.com/vulnerability/f9f5485c-6231-492c-b214-8da87a2bf4d1/