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Fencer Intel
critical 9.8

CVE-2024-4320 in the critical feed json

Remote Code Execution due to LFI in '/install_extension' in parisneo/lollms-webui

published 2y ago modified 4mo ago also EUVD-2024-43963

cvss
9.8
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
34.4%
EPSS 34.4% chance of exploitation in 30 days, percentile 98%
public exploits
0
none known

Summary

A remote code execution (RCE) vulnerability exists in the '/install_extension' endpoint of the parisneo/lollms-webui application, specifically within the `@router.post("/install_extension")` route handler. The vulnerability arises due to improper handling of the `name` parameter in the `ExtensionBuilder().build_extension()` method, which allows for local file inclusion (LFI) leading to arbitrary code execution. An attacker can exploit this vulnerability by crafting a malicious `name` parameter that causes the server to load and execute a `__init__.py` file from an arbitrary location, such as the upload directory for discussions. This vulnerability affects the latest version of parisneo/lollms-webui and can lead to remote code execution without requiring user interaction, especially when the application is exposed to an external endpoint or operated in headless mode.

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CISA SSVC

Exploitation
Proof of concept is public
Automatable
yes
Technical impact
total
Assessed
2y ago

Exploit prediction

34.35% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-11).

Exploits and checks

  • huntr.com https://huntr.com/bounties/d6564f04-0f59-4686-beb2-11659342279b referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.0 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • parisneo parisneo/lollms-webui
  • parisneo lollms

Classification

Weakness
  • CWE-29 Path Traversal: '\..\filename'
  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.