TI-2024-12159 Aliases CVE-2024-13111 GHSA-9vhg-5pgx-8q97

Beijing Yunfan Internet Technology Yunfan Learning Examination System JWT Token SysUserControl improper authentication

MEDIUM 61CWE-287Published 2025-01-02 · Updated 2025-01-02

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: High
Attack requirements: None
Impact type: Security bypass
Confidentiality · integrity · availability: Low · Low · Low
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-287.

Summary

A vulnerability classified as critical was found in Beijing Yunfan Internet Technology Yunfan Learning Examination System 1.9.2. Affected by this vulnerability is an unknown functionality of the file src/main/java/com/yf/exam/modules/sys/user/controller/SysUserControl of the component JWT Token Handler. The manipulation leads to improper authentication. The attack can be launched 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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00806 57th percentileScored 2026-11-07

Public exploit Yes 2 exploit referencesTagged by NVD and the CNA

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Beijing Yunfan Internet Technology	Yunfan Learning Examination System	1.9.2	—	No fix listed	CNA

Yunfan Learning Examination System VendorBeijing Yunfan Internet Technology Affected 1.9.2 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:kaoshifeng:yunfan_learning_examination_system:1.9.2:::::::*	1.9.2	Vulnerable	Beijing Yunfan Internet Technology

cpe:2.3:a:kaoshifeng:yunfan_learning_examination_system:1.9.2:*:*:*:*:*:*:* Versions 1.9.2 Vulnerable ·Beijing Yunfan Internet Technology

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2024-13111
2026-10-03 Alias added: GHSA-9vhg-5pgx-8q97

References

Exploit 2

TI-2024-12157 Beijing Yunfan Internet Technology Yunfan Learning Examination System doc.html improper authorization CVSS 4.0MEDIUM 6.9
TI-2023-25357 An issue in Beijing Yunfan Internet Technology Co., Ltd, Yunfan Learning Examination… CVSS 3.1MEDIUM 5.3
TI-2024-12158 Information disclosure in Beijing Yunfan Internet Technology Yunfan Learning Examination… CVSS 4.0MEDIUM 5.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences