CVE-2023-27351 - PaperCut NG/MF
AI Vulnerability ContextThis 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 SecurityRequestFilter class. The issue results from improper implementation of the authentication algorithm. An attacker can leverage this vulnerability to bypass authentication on the sys...
Overview
A source-backed snapshot of this vulnerability.
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 SecurityRequestFilter class. The issue results from improper implementation of the authentication algorithm. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-19226.
Vulnerability status
How serious this vulnerability is and whether it is known to be exploited.
- CVE ID
- CVE-2023-27351
- Vendor/project
- PaperCut
- Product
- NG/MF
- Vulnerability name
- PaperCut NG/MF Improper Authentication Vulnerability
- Date added
- 2026-04-20
- Due date
- 2026-05-04
- Known ransomware campaign use
- Known
- CVSS v3
- 7.5
Exploit context
What the vulnerability is about.
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 SecurityRequestFilter class. The issue results from improper implementation of the authentication algorithm. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-19226.
Source evidence
Original public records and references for this page.
Original source
Original source links
Open the public records and source datasets used for this page.