FastCMS 0.1.5 JWT hard-coded key

Summaryinfo

A vulnerability categorized as critical has been discovered in FastCMS 0.1.5. This impacts an unknown function of the component JWT Handler. Executing a manipulation can lead to hard-coded key. This vulnerability is handled as CVE-2025-3177. The attack can be executed remotely. Additionally, an exploit exists.

Detailsinfo

A vulnerability was found in FastCMS 0.1.5. It has been declared as critical. This vulnerability affects an unknown functionality of the component JWT Handler. The manipulation with an unknown input 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, integrity, and availability.

The advisory is shared for download at github.com. This vulnerability was named CVE-2025-3177. The exploitation appears to be difficult. The attack can be initiated remotely. Technical details are unknown but a public exploit is available. The MITRE ATT&CK project declares the attack technique as T1600.001.

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

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

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

• FastCMS

Version

• 0.1.5

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

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Accepted

• Submit #543673: 广州小橘灯信息科技有限公司 FastCMS 0.1.5 JWT hard coding leads to identity forgery (by Unnlucky1)

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