CVE-2023-27350
CVSS Score
9.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-284 |
| Vendor | papercut |
| Product | ng |
| Published | Apr 20, 2023 |
| Last Updated | Oct 21, 2025 |
⚠️ Actively Exploited — Act Now
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CVSS v3 Breakdown
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Affected Versions
PaperCut / NG
22.0.5 (Build 63914)
References
zerodayinitiative.com: https://www.zerodayinitiative.com/advisories/ZDI-23-233/ papercut.com: https://www.papercut.com/kb/Main/PO-1216-and-PO-1219 packetstormsecurity.com: http://packetstormsecurity.com/files/171982/PaperCut-MF-NG-Authentication-Bypass-Remote-Code-Execution.html packetstormsecurity.com: http://packetstormsecurity.com/files/172022/PaperCut-NG-MG-22.0.4-Authentication-Bypass.html news.sophos.com: https://news.sophos.com/en-us/2023/04/27/increased-exploitation-of-papercut-drawing-blood-around-the-internet/ packetstormsecurity.com: http://packetstormsecurity.com/files/172512/PaperCut-NG-MG-22.0.4-Remote-Code-Execution.html packetstormsecurity.com: http://packetstormsecurity.com/files/172780/PaperCut-PaperCutNG-Authentication-Bypass.html cisa.gov: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-27350
Credits
Anonymous