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CVE-2026-73225— electerm: Path traversal in FTP/SFTP recursive folder download via unsanitized server filename

Quick assessment

Affected
electerm electerm
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.

electerm是electerm组织的一款终端仿真程序。 electerm 3.15.120之前版本存在路径遍历漏洞，该漏洞源于递归传输过程中未对服务器提供的file.name和folder.name值进行清理，可能导致恶意FTP或SFTP服务器在所选下载目录之外写入攻击者控制的内容。

CVSS 8.1 · High EPSS 0.49% · P41

Possible ATT&CK Techniques 1 AI

T1059.004 · Unix Shell

Affected Version Matrix 1

VendorProduct Version RangeStatus
electerm electerm < 3.15.120 affected
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I. Basic Information for CVE-2026-73225

Vulnerability Information
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Vulnerability Title
electerm: Path traversal in FTP/SFTP recursive folder download via unsanitized server filename
Source: CVE Program / CVE List V5
Vulnerability Description
electerm is an open-sourced terminal/ssh/sftp/telnet/serialport/RDP/VNC/Spice/ftp client. Prior to 3.15.120, electerm allows a malicious FTP or SFTP server to write attacker-controlled content outside the selected download directory because recursive transfers in src/client/components/file-transfer/transfer.jsx pass server-supplied file.name and folder.name values to resolve without sanitization. This issue is fixed in version 3.15.120.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
electerm 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
electerm是electerm组织的一款终端仿真程序。 electerm 3.15.120之前版本存在路径遍历漏洞，该漏洞源于递归传输过程中未对服务器提供的file.name和folder.name值进行清理，可能导致恶意FTP或SFTP服务器在所选下载目录之外写入攻击者控制的内容。
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
electerm electerm < 3.15.120 -

II. Public POCs for CVE-2026-73225

# POC Description Source Link Shenlong Link
AI-Generated POC Verified env Premium
Reproduced successfully in a real sandbox · Below is the actual recording of building the environment and exploiting the vulnerability.
Reproduction recording is a Pro+ exclusive
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claude_code · 7102 chars
GitHub 复现环境（可 clone 直接跑）
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
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POC zip download
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III. Intelligence Information for CVE-2026-73225

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Patches & Fixes for CVE-2026-73225 (1)

Vendor Advisories for CVE-2026-73225 (1)

Vendor Pages for CVE-2026-73225 (1)

Same Patch Batch · electerm · 2026-08-11 · 5 CVEs total

CVE-2026-73226 8.8 HIGH Electerm WebSocket `upgrade-func` and `fs` handlers allow arbitrary method/function invoca
CVE-2026-73224 8.8 HIGH Electerm check folder size function may get attacked by unsafe folder name
CVE-2026-73223 8.1 HIGH electerm: Path traversal in editWithSystemEditor temp file path via unsanitized SFTP filen
CVE-2026-73227 8.1 HIGH electerm's RDP clipboard file download may parse unsafe file name

IV. Related Vulnerabilities

Same product: electerm
Same vendor: electerm
Same weakness: CWE-22

V. Comments for CVE-2026-73225

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