Arbitrary File Read Vulnerability in CyberPanel by ISPConfig
CVE-2026-71964

7.1HIGH

Key Information:

Vendor

Usmannasir

Status
Cyberpanel
Vendor
CVE Published:
10 August 2026

Badges

👾 Exploit Exists

What is CVE-2026-71964?

CyberPanel version 2.4.3 contains a significant vulnerability within its file manager component. This flaw allows authenticated attackers to read sensitive files on the server. The vulnerability arises due to the application’s failure to properly validate symbolic links during the extraction of ZIP archives. An attacker can exploit this by uploading a specially crafted ZIP file that contains symbolic links, enabling them to access arbitrary system files beyond their home directory. This can lead to unauthorized exposure of confidential information through the web interface.

Affected Version(s)

cyberpanel 0 <= 2.4.3

cyberpanel 0 <= 2.4.3

cyberpanel eca0c3cbeb35af8eaae9fafb094e8ef3cd923643

References

https://themcsam.github.io/posts/cyberpanel-2.4.3-vulnera...
technical-descriptionexploit
https://github.com/usmannasir/cyberpanel/commit/eca0c3cbe...
patch
https://www.vulncheck.com/advisories/cyberpanel-arbitrary...
third-party-advisory

CVSS V4

Score:
7.1
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

McSam
.