CVE-2023-41646

MEDIUM

Buttercup v2.20.3 - Info Disclosure

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 2 public exploits for CVE-2023-41646. PoCs published by tristao-io.

AI-analyzed exploit summary The repository demonstrates an information leakage vulnerability in Buttercup v2.20.3, where the master password hash can be obtained by accessing the file `/vaults.json`. The PoC provides a clear example of how to exploit this issue.

Description

Buttercup v2.20.3 allows attackers to obtain the hash of the master password for the password manager via accessing the file /vaults.json/

Exploits (2)

nomisec WORKING POC
by tristao-io · poc
https://github.com/tristao-io/CVE-2023-41646

The repository demonstrates an information leakage vulnerability in Buttercup v2.20.3, where the master password hash can be obtained by accessing the file `/vaults.json`. The PoC provides a clear example of how to exploit this issue.

Classification
Working Poc 90%
Attack Type
Info Leak
Complexity
Trivial
Reliability
Reliable
Target: Buttercup v2.20.3
No auth needed
Prerequisites: Access to the local file system where Buttercup is installed
devstral-2 · analyzed Feb 18, 2026 Full analysis →
inthewild WORKING POC
poc
https://github.com/tristao-marinho/cve-2023-41646

This PoC demonstrates an information leakage vulnerability in Buttercup v2.20.3, where the master password hash can be obtained by accessing the file `/vaults.json`. The exploit is trivial and involves reading a local file.

Classification
Working Poc 90%
Attack Type
Info Leak
Complexity
Trivial
Reliability
Reliable
Target: Buttercup v2.20.3
No auth needed
Prerequisites: local file system access
devstral-2 · analyzed Feb 23, 2026 Full analysis →

References (2)

Core 2
Core References

Scores

CVSS v3 5.3
EPSS 0.0007
EPSS Percentile 20.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact partial

Details

CWE
CWE-916
Status published
Products (2)
npm/buttercup 2.20.3 - 7.4.0npm
perrymitchell/buttercup 2.20.3
Published Sep 07, 2023
Tracked Since Feb 18, 2026