CVE-2023-27351β€”PaperCut NG/MF Improper Authentication Vulnerability

PUBLISHEDvulnerability record
2026-04-20 Β· last modified April 21, 2026

Metadata

CVE ID:
CVE-2023-27351
Project:
PaperCut
Product:
NG/MF
Date Added:
2026-04-20
Due Date:
2026-05-04
Last Updated:
April 21, 2026

Vulnerability Name

PaperCut NG/MF Improper Authentication Vulnerability

Description

PaperCut NG/MF contains an improper authentication vulnerability that could allow remote attackers to bypass authentication on affected installations via the SecurityRequestFilter class.

Known To Be Used in Ransomware Campaigns?

Ransomware Status:
KNOWN

Action

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Additional Notes

  • https://www.papercut.com/kb/Main/PO-1216-and-PO-1219
  • https://nvd.nist.gov/vuln/detail/CVE-2023-27351

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