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CVE-2023-40580— Freighter mnemonic phrase may be accessed by Javascript through a private API

Quick assessment

Affected
stellar freighter
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Freighter是Stellar开源的一个扩展。 Freighter 5.3.1及之前版本存在信息泄露漏洞，该漏洞源于允许攻击者通过私有API利用Javascript访问助记词。

CVSS 8.1 · High EPSS 0.68% · P51

Possible ATT&CK Techniques 1 AI

T1005 · Data from Local System
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I. Basic Information for CVE-2023-40580

Vulnerability Information
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Vulnerability Title
Freighter mnemonic phrase may be accessed by Javascript through a private API
Source: CVE Program / CVE List V5
Vulnerability Description
Freighter is a Stellar chrome extension. It may be possible for a malicious website to access the recovery mnemonic phrase when the Freighter wallet is unlocked. This vulnerability impacts access control to the mnemonic recovery phrase. This issue was patched in version 5.3.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Freighter 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Freighter是Stellar开源的一个扩展。 Freighter 5.3.1及之前版本存在信息泄露漏洞，该漏洞源于允许攻击者通过私有API利用Javascript访问助记词。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
stellar freighter < 5.3.1 -

II. Public POCs for CVE-2023-40580

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 8982 chars
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Trigger conditions & impact
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III. Intelligence Information for CVE-2023-40580

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Patches & Fixes for CVE-2023-40580 (2)

Vendor Advisories for CVE-2023-40580 (1)

IV. Related Vulnerabilities

Same vendor: stellar
Same weakness: CWE-200

V. Comments for CVE-2023-40580

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