CVE-2024-3283: Privilege Escalation via Mass Assignment in mintplex-labs/anything-llm

Severity: high (CVSS 7.2 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.9% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2024-04-10 · updated 2026-06-17
Weakness: CWE-915

Description

A vulnerability in mintplex-labs/anything-llm allows users with manager roles to escalate their privileges to admin roles through a mass assignment issue. The '/admin/system-preferences' API endpoint improperly authorizes manager-level users to modify the 'multi_user_mode' system variable, enabling them to access the '/api/system/enable-multi-user' endpoint and create a new admin user. This issue results from the endpoint accepting a full JSON object in the request body without proper validation of modifiable fields, leading to unauthorized modification of system settings and subsequent privilege escalation.

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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