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High severity7.5CISA KEVNVD Advisory· Published Apr 20, 2023· Updated Jun 17, 2026

CVE-2023-27351

CVE-2023-27351

Description

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

3
  • Papercut/Papercut Mf
    cpe:2.3:a:papercut:papercut_mf:*:*:*:*:*:*:*:*
    Range: >=15.0,<20.1.7
  • Papercut/Papercut Ng2 versions
    cpe:2.3:a:papercut:papercut_ng:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:a:papercut:papercut_ng:*:*:*:*:*:*:*:*range: >=15.0,<20.1.7
    • (no CPE)range: = 22.0.5 (Build 63914)

Patches

Vulnerability mechanics

References

3

News mentions

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