Broken Access Control Vulnerability in Liquidfiles by Liquidfiles
CVE-2026-12673

5.9MEDIUM

Key Information:

Vendor

Liquidfiles

Status
Liquidfiles
Vendor
CVE Published:
20 June 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-12673?

Liquidfiles versions prior to 4.2.12 exhibit a broken access control vulnerability that allows for privilege escalation. An attacker with Admin privileges in a secondary domain can exploit this vulnerability to gain Sysadmin access by manipulating group settings within their managed non-default group. This flaw potentially compromises the integrity and security of user privileges across the affected Liquidfiles platform.

Affected Version(s)

liquidfiles 0 < 4.2.12

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-2026-12673 - Proof of Concept

References

https://docs.liquidfiles.com/release_notes/version_4-2-x....
vendor-advisory
https://projectblack.io/blog/liquidfiles-privilege-escala...
exploit

CVSS V4

Score:
5.9
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

.