PaperCut · NG/MF
CVE-2023-27351
PaperCut NG/MF Improper Authentication Vulnerability
Was es ist
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.
CISA: PaperCut NG/MF contains an improper authentication vulnerability that could allow remote attackers to bypass authentication on affected installations via the SecurityRequestFilter class.
Was zu tun ist
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Frist für US-Bundesbehörden: 4. Mai 2026
Weitere ausgenutzte Schwachstellen von PaperCut
| Hinzugefügt | Schwachstelle | Produkt | Schweregrad | Angriffswahrscheinlichkeit |
|---|---|---|---|---|
| 31.08.2026 | Missing Authentication for Critical Function | NG/MF | Hoch 8,8 | 84% |
| 31.08.2026 | Unsafe Reflection | NG/MF | Kritisch 9,4 | 61% |
| 28.07.2025 | Cross-Site Request Forgery (CSRF) | NG/MF | Hoch 8,4 | 29% |
| 21.04.2023 | Improper Access Control | MF/NG | Kritisch 9,8 | >99,9% |
Quellen: Known Exploited Vulnerabilities (CISA, gemeinfrei), CVE records (cve.org) und EPSS (FIRST). Die Angriffswahrscheinlichkeit ist die EPSS-Schätzung, dass jemand in den nächsten 30 Tagen versucht, die Schwachstelle auszunutzen.