All vulnerabilities
CVE-2023-27350

PaperCut MF/NG Improper Access Control Vulnerability

PaperCut MF/NG
Open in ThreatlineRecord JSON
CVSS
9.8Critical
ExploitationExploited in the wildAdded to KEV 21 Apr 2023. Known ransomware useCISA KEV
Exploit odds (EPSS)>99.9%Chance of exploitation activity in the next 30 days, higher than 99.9% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Federal deadline12 May 2023Remediation due date for US federal agenciesCISA KEV
CISA required actionApply updates per vendor instructions. CISA KEV

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

Timeline

  1. 13 Mar 2023Exploit code publicMetasploit
  2. 20 Apr 2023, 00:00 UTCPublishedCVE List
  3. 21 Apr 2023Added to CISA KEVCISA KEV
  4. 9 Oct 2026, 17:31 UTCFirst reported exploitedwatchTowr Labs

Public exploit code and templates 4

  • Exploit modulePaperCut PaperCutNG Authentication Bypass 13 Mar 2023Metasploit
  • Webapps exploitPaperCut NG/MG 22.0.4 - Authentication Bypass 25 Apr 2023Exploit-DB
  • Webapps exploitPaperCut NG/MG 22.0.4 - Remote Code Execution (RCE) 23 May 2023Exploit-DB
  • Scanner templatePaperCut - Unauthenticated Remote Code ExecutionNuclei

Listed so defenders can prioritize. Threatline links to the source and does not host exploit code.

Description

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.

Text from CVE List

Affected versions 1

  • NGaffected: 22.0.5 (Build 63914)CVE List

References 5