VDB-313882 · Submit #602368 · CVE-2025-6669

gooaclok819 sublinkX up to 1.8 middlewares/jwt.go hard-coded key

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.
3.5	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in gooaclok819 sublinkX up to 1.8. This affects an unknown function of the file middlewares/jwt.go. Executing a manipulation with the input sublink can lead to hard-coded key. This vulnerability is tracked as CVE-2025-6669. The attack can be launched remotely. Moreover, an exploit is present. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in gooaclok819 sublinkX up to 1.8. It has been declared as problematic. This vulnerability affects some unknown functionality of the file middlewares/jwt.go. The manipulation with the input value sublink leads to a hard-coded key vulnerability. The CWE definition for the vulnerability is CWE-321. The use of a hard-coded cryptographic key significantly increases the possibility that encrypted data may be recovered. As an impact it is known to affect confidentiality.

The advisory is available at github.com. This vulnerability was named CVE-2025-6669. The exploitation appears to be difficult. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details and also a public exploit are known. This vulnerability is assigned to T1600.001 by the MITRE ATT&CK project.

It is possible to download the exploit at github.com. It is declared as proof-of-concept.

Upgrading to version 1.9 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 778d26aef723daa58df98c8060c43f5bf5d1b10b is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-19165). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

gooaclok819

Name

sublinkX

Version

License

open-source

Website

Product: https://github.com/gooaclok819/sublinkX/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔍
CNA CVSS-BT Score: 🔍
CNA Vector: 🔍

CVSSv3info

VulDB Meta Base Score: 3.7
VulDB Meta Temp Score: 3.5

VulDB Base Score: 3.7
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 3.7
CNA Vector: 🔍

CVSSv2info

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

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Hard-coded key
CWE: CWE-321 / CWE-320
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: sublinkX 1.9
Patch: 778d26aef723daa58df98c8060c43f5bf5d1b10b

Timelineinfo

06/25/2025 🔍
06/25/2025 +0 days 🔍
06/27/2025 +2 days 🔍

Sourcesinfo

Product: github.com

Advisory: 68
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2025-6669 (🔍)
GCVE (CVE): GCVE-0-2025-6669
GCVE (VulDB): GCVE-100-313882
EUVD: 🔍
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 06/25/2025 17:03
Updated: 06/27/2025 13:03
Changes: 06/25/2025 17:03 (62), 06/26/2025 02:25 (1), 06/26/2025 04:37 (30), 06/27/2025 12:56 (3), 06/27/2025 13:03 (1)
Complete: 🔍
Submitter: Tritium
Cache ID: 216::103

Submitinfo

Accepted

Submit #602368: gooaclok819 sublinkX 1.8 Improper Access Controls (by Tritium)

If you want to get best quality of vulnerability data, you may have to visit VulDB.