CVE-2023-27351

HighCVSS 7.5/10Known exploited (CISA KEV)Last modified Oct 1, 2026

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.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-287

Affected software

VendorProductVersions
PaperCutNG22.0.5 (Build 63914)

References

Timeline

Published
Apr 20, 2023
Last modified
Oct 1, 2026
Added to CISA KEV
Apr 20, 2026
NVD status
Analyzed

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CVE-2023-27351: High severity, CVSS 7.5 | Vulnix