Vulnerability Analysis
CVE-2023-27351
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 KEV
Nuclei Template
CVSS Base Score
8.2
HIGH
Exploitability:3.9
Impact Score:4.3
Temporal Score:-
EPSS:78.42%
Threat Intelligence Signals
CISA KEV
YES
KEV Date Added
2026-04-20
Ransomware Use
Known
KEV Due Date
2026-05-04
VulnCheck In-the-Wild
No
Nuclei Template
YES
EPSS Score
78.420%
EPSS Percentile
99.5th pct
GHSA ID
GitHub Severity
HIGH
SSVC Exploitation
—
SSVC Automatable
—
Vulnerability Class
—
Identity & Timeline
| Status | - |
| Assigning Authority | - |
| CVSS Version / Source | - |
| Reserved | - |
| Published | - |
| Patch Date (date_public) | - |
| Exploit DB Date | - |
| First GitHub PoC Date | - |
| Last Updated | - |
| Time to Patch (Days to fix) | - |
| Exploit Release Gap | - |
| PoC Release Gap | - |
| Exploit DB References | None identified |
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| No affected products specified. | ||
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