CVE-2024-4520 Improper Access Control in gaizhenbiao/chuanhuchatgpt

High 7.5 Published 4 Jun 2024 Updated 15 Oct 2025

Attackers can access other users' chat histories without authorization, exposing sensitive personal and financial data.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2024-4520?

CVE-2024-4520 is a high-severity missing authorization vulnerability in gaizhenbiao/chuanhuchatgpt, published on 4 Jun 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-862

Which versions are affected by CVE-2024-4520?

It affects 1 product.

Products include Gaizhenbiao Chuanhuchatgpt.

How do I fix CVE-2024-4520?

No fix has been published for CVE-2024-4520 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2024-4520 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-4520 exists.

Sources

Also known as GHSA-84rm-429m-4rw9.