Arbitrary File Download Vulnerability in HelloWeb by HelloWeb Co.
CVE-2020-37034

8.7HIGH

Key Information:

Vendor

Helloweb

Status
Helloweb
Vendor
CVE Published:
30 January 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2020-37034?

HelloWeb 2.0 is prone to an arbitrary file download vulnerability that enables remote attackers to exploit manipulated filepath and filename parameters. By crafting specific GET requests aimed at the download.asp script, attackers can leverage directory traversal techniques to retrieve sensitive configuration files and system resources, potentially compromising the integrity and confidentiality of the affected systems.

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Affected Version(s)

HelloWeb 2.0

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2020-37034 - Proof of Concept

References

https://www.exploit-db.com/exploits/48659
exploit
https://web.archive.org/web/20190109182037/https://hellow...
product
https://www.vulncheck.com/advisories/helloweb-arbitrary-f...
third-party-advisory

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

bRpsd
JSON
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