VDB-426102 · Submit #992835 · CVE-2026-116004

onyx-dot-app Onyx up to 5.0.0 PreviewTab.tsx cross site scripting

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
3.3	$0-$5k	3.28

Summaryinfo

A vulnerability described as problematic has been identified in onyx-dot-app Onyx up to 5.0.0. The affected element is an unknown function of the file web/src/app/craft/components/output-panel/PreviewTab.tsx. The manipulation results in cross site scripting. This vulnerability is reported as CVE-2026-116004. The attack can be launched remotely. Moreover, an exploit is present. The vendor was contacted early about this disclosure but did not respond in any way.

Detailsinfo

A vulnerability was found in onyx-dot-app Onyx up to 5.0.0. It has been classified as problematic. Affected is an unknown code block of the file web/src/app/craft/components/output-panel/PreviewTab.tsx. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity.

The advisory is available at github.com. This vulnerability is traded as CVE-2026-116004. The exploitability is told to be easy. It is possible to launch the attack remotely. Successful exploitation requires user interaction by the victim. Technical details and a public exploit are known. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.

It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

onyx-dot-app

Name

Onyx

Version

Website

Product: https://github.com/onyx-dot-app/onyx/

CPE 2.3info

🔒

CPE 2.2info

🔒

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.3

VulDB Base Score: 3.5
VulDB Temp Score: 3.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

10/24/2026 Advisory disclosed
10/24/2026 +0 days VulDB entry created
10/24/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: GHSA-grhq-88h5-2h86
Status: Confirmed

CVE: CVE-2026-116004 (🔒)
GCVE (CVE): GCVE-0-2026-116004
GCVE (VulDB): GCVE-100-426102
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 10/24/2026 13:18
Changes: 10/24/2026 13:18 (55)
Complete: 🔍
Submitter: fernando viana
Cache ID: 216::103

Submitinfo

Accepted

Submit #992835: onyx-dot-app Onyx Craft main commit 711a0479f1630dcce38f8f58212a63080702b753 Same-Origin Iframe Sandbox Bypass / Stored Cross-Site Scripting (by fernando viana)