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VULNERABILITIES

CVE-2023-25403 Details

Description

CleverStupidDog yf-exam v 1.8.0 is vulnerable to Authentication Bypass. The program uses a fixed JWT key, and the stored key uses username format characters. Any user who logged in within 24 hours. A token can be forged with his username to bypass authentication.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CNA: CISA-ADPCVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://github.com/CleverStupidDog/yf-exam/issues/2 CVEExploitIssue TrackingThird Party Advisory
https://github.com/Fw-fW-fw/UPDATE-CVE/blob/main/CVE-2023-25403 CVEThird Party Advisory
https://github.com/CleverStupidDog/yf-exam/issues/2 [email protected]ExploitIssue TrackingThird Party Advisory
https://github.com/Fw-fW-fw/UPDATE-CVE/blob/main/CVE-2023-25403 [email protected]Third Party Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-639Authorization Bypass Through User-Controlled Key[email protected]
CWE-639Authorization Bypass Through User-Controlled KeyCISA-ADP

Affected Products

ProductVersions
yf-exam project yf-exam
1.8.0

CPE

  • cpe:2.3:a:yf-exam_project:yf-exam:1.8.0:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

6 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2023-25403
NVD Published Date:
Mar 3, 2023
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2023-25403 Details - Not Deferred