CVE-2024-3570: Stored XSS leading to Admin Account Takeover in mintplex-labs/anything-llm

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2024-04-10 · updated 2026-06-17
Weakness: CWE-79

Description

A stored Cross-Site Scripting (XSS) vulnerability exists in the chat functionality of the mintplex-labs/anything-llm repository, allowing attackers to execute arbitrary JavaScript in the context of a user's session. By manipulating the ChatBot responses, an attacker can inject malicious scripts to perform actions on behalf of the user, such as creating a new admin account or changing the user's password, leading to a complete takeover of the AnythingLLM application. The vulnerability stems from the improper sanitization of user and ChatBot input, specifically through the use of `dangerouslySetInnerHTML`. Successful exploitation requires convincing an admin to add a malicious LocalAI ChatBot to their AnythingLLM instance.

Affected products

Mintplexlabs Anythingllm: before 1.0.0 — fixed in 1.0.0

How to fix

Upgrade to a fixed version: Mintplexlabs Anythingllm 1.0.0. Check the vendor advisory for mitigations.

References

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