CVEvulnerability

CVE-2023-27350

9.8 CRITICAL Known exploited Published 2023-04-20 Modified 2026-06-17 Official page ↗

CISA Known Exploited Vulnerability

PaperCut MF/NG Improper Access Control Vulnerability — PaperCut MF/NG

PaperCut MF/NG contains an improper access control vulnerability within the SetupCompleted class that allows authentication bypass and code execution in the context of system.

Added to KEV
2023-04-21
Remediation due
2023-05-12
Ransomware use
Known
Required action
Apply updates per vendor instructions.
Notes
https://www.papercut.com/kb/Main/PO-1216-and-PO-1219; https://nvd.nist.gov/vuln/detail/CVE-2023-27350
Status
Analyzed
Published
2023-04-20
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 3.0 ([email protected])
9.8 CRITICAL — CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-284

Description

This vulnerability allows remote attackers to bypass authentication on affected installations of PaperCut NG 22.0.5 (Build 63914). Authentication is not required to exploit this vulnerability. The specific flaw exists within the SetupCompleted class. The issue results from improper access control. An attacker can leverage this vulnerability to bypass authentication and execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-18987.

Affected configurations

• papercut papercut mf (>= 8.0 < 20.1.7) • papercut papercut mf (>= 21.0.0 < 21.2.11) • papercut papercut mf (>= 22.0.0 < 22.0.9) • papercut papercut ng (>= 8.0 < 20.1.7) • papercut papercut ng (>= 21.0.0 < 21.2.11) • papercut papercut ng (>= 22.0.0 < 22.0.9)

Related

Weakness · CWE (1)

  • CWE-284 Improper Access Control weakness

References