Path Traversal Vulnerability in ClipBucket Admin Template Editor by MacWarrior
CVE-2026-100372

8.6HIGH

Key Information:

Vendor

Macwarrior

Status
Clipbucket-v5
Vendor
CVE Published:
25 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-100372?

ClipBucket versions prior to 5.5.3-#197 contain a vulnerability in the admin template editor that allows authenticated administrators with manage_template_access permission to exploit directory traversal sequences. This flaw enables the modification of executable PHP files by traversing outside of the designated layout directory, which could lead to remote code execution as the web server user. It is critical for users to update to the latest version to mitigate this risk.

Affected Version(s)

clipbucket-v5 0 < 5.5.3-#197

clipbucket-v5 5.5.3-#197

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-2026-100372 - Proof of Concept

References

https://hackmd.io/@leediay/S1AIRjzqfx
exploitthird-party-advisory
https://github.com/MacWarrior/clipbucket-v5/commit/f31de4...
patch
https://github.com/MacWarrior/clipbucket-v5/blob/61cce55a...
technical-description

CVSS V4

Score:
8.6
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
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

leediay153
.