CVE-2024-4520

Name: CVE-2024-4520
Creator: NVD / NIST
Published: 2024-06-04T20:15:11.69+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.52%

Last modified Jun 17, 2026

CVE-2024-4520 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. An improper access control vulnerability exists in the gaizhenbiao/chuanhuchatgpt application, specifically in version 20240410. This vulnerability allows any user on the server to access the chat history of any other user without requiring any form of interaction between the users. EPSS estimates a 0.52% chance of exploitation in the next 30 days.

Description

An improper access control vulnerability exists in the gaizhenbiao/chuanhuchatgpt application, specifically in version 20240410. This vulnerability allows any user on the server to access the chat history of any other user without requiring any form of interaction between the users. Exploitation of this vulnerability could lead to data breaches, including the exposure of sensitive personal details, financial data, or confidential conversations. Additionally, it could facilitate identity theft and manipulation or fraud through the unauthorized access to users' chat histories. This issue is due to insufficient access control mechanisms in the application's handling of chat history data.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS Probability

0.52%

40.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-862

Affected Software

Vendor	Product	Versions
Gaizhenbiao	Chuanhuchatgpt	<= 20240410

References

https://github.com/gaizhenbiao/chuanhuchatgpt/commit/ccc7479ace5c9e1a1d9f4daf2e794ffd3865fc2b
https://huntr.com/bounties/0dd2da9f-998d-45aa-a646-97391f524000Exploit, Third Party Advisory
https://huntr.com/bounties/0dd2da9f-998d-45aa-a646-97391f524000Exploit, Third Party Advisory

Timeline

Published: Jun 4, 2024
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2024-4520?

How severe is CVE-2024-4520?

CVE-2024-4520 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.52% probability of exploitation in the next 30 days.

How do I fix CVE-2024-4520?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-4520?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST