CVE-2023-27351

UNKNOWNKnown Exploited

CISA Known Exploited Vulnerability

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

Remediation deadline: May 4, 2026

Ransomware use: Known

Description

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

Timeline

Published:April 20th, 2026 12:00 AM

Last modified:April 20th, 2026 12:00 AM

Added to KEV:April 20th, 2026

CVSS Scoring

No CVSS v3 score available

Affected Software

From NVD CPE configuration data

Vendors

PaperCut

Products

NG/MF

Weaknesses (CWE)

CWE-287

References & Reports

Advisories, patches, and third-party reports

No references available.

Source: CISA KEV + NVD · Data may lag official sources by up to one minute