Vulnerability · Published Apr 3, 2025 · Assigned by VulDB

CVE-2025-3177FastCMS JWT hard-coded key

Medium 5.0

In plain English

A medium-severity security flaw in FastCMS. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 42% of all known vulnerabilities).

Severity (CVSS 3.1)5.0Medium

Exploit odds (30 days)0.5%top 58.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

A vulnerability was found in FastCMS 0.1.5. It has been declared as critical. This vulnerability affects unknown code of the component JWT Handler. The manipulation leads to use of hard-coded cryptographic key . The attack can be initiated remotely. The complexity of an attack is rather high. The exploitation appears to be difficult. The exploit has been disclosed to the public and may be used.

Affected products (as reported)

Vendor	Product	Versions
n/a	FastCMS	0.1.5

Weakness: CWE-321, CWE-320 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L

References

VDB-303136 | FastCMS JWT hard-coded key vdb-entry
VDB-303136 | CTI Indicators (IOB, IOC, TTP) signature, permissions-required
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 third-party-advisory
https://github.com/chujianxin0101/vuln/issues/2 exploit, issue-tracking