CVE-2023-27350 (GCVE-0-2023-27350)

Vulnerability from cvelistv5 – Published: 2023-04-20 00:00 – Updated: 2025-10-21 23:05
VLAI? CISA KEV
Summary
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.
Severity ?
9.8 (Critical)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-284 - Improper Access Control
Assigner
zdi
References
Impacted products
Vendor Product Version
PaperCut NG Affected: 22.0.5 (Build 63914)
Create a notification for this product.
Credits
Anonymous
CISA KEV
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 6a42255d-ab36-4a3c-ba02-d798c1278e9e

Vulnerability ID: CVE-2023-27350

Status: Confirmed

Status Updated: 2023-04-21 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2023-04-21
Asserted: 2023-04-21
Scope
Notes: KEV entry: PaperCut MF/NG Improper Access Control Vulnerability | Affected: PaperCut / MF/NG | 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. | Required action: Apply updates per vendor instructions. | Due date: 2023-05-12 | Known ransomware campaign use (KEV): Known | Notes (KEV): https://www.papercut.com/kb/Main/PO-1216-and-PO-1219; https://nvd.nist.gov/vuln/detail/CVE-2023-27350
Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details
Cwes CWE-284
Feed CISA Known Exploited Vulnerabilities Catalog
Product MF/NG
Due Date 2023-05-12
Date Added 2023-04-21
Vendorproject PaperCut
Vulnerabilityname PaperCut MF/NG Improper Access Control Vulnerability
Knownransomwarecampaignuse Known
References
Created: 2026-02-02 12:27 UTC | Updated: 2026-02-02 12:27 UTC
Show details on NVD website
To clipboard 

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    "vulnrichment": {
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      "cveMetadata": "{\"cveId\": \"CVE-2023-27350\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-10-21T23:05:48.700Z\", \"dateReserved\": \"2023-02-28T00:00:00.000Z\", \"assignerOrgId\": \"99f1926a-a320-47d8-bbb5-42feb611262e\", \"datePublished\": \"2023-04-20T00:00:00.000Z\", \"assignerShortName\": \"zdi\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.