CVE-2023-27351
PaperCut NG/MF Improper Authentication Vulnerability
Summary
PaperCut NG/MF contains an improper authentication vulnerability that could allow remote attackers to bypass authentication on affected installations via the SecurityRequestFilter class.
Affected software
Vendor: PaperCut · Product: NG/MF
Weakness types (CWE):
What to do
This vulnerability appears in CISA's Known Exploited Vulnerabilities catalog, meaning it is being exploited in the wild. Prioritize patching affected systems and verify exposure across your estate.
Related vulnerabilities in PaperCut
| CVE | Name | EPSS | Exploited |
|---|---|---|---|
| CVE-2023-27350 | PaperCut MF/NG Improper Access Control Vulnerability | 100.0% | Yes |
| CVE-2026-81578 | PaperCut NG/MF Missing Authentication for Critical Function Vulnerability | 84.7% | Yes |
| CVE-2026-82078 | PaperCut NG/MF Unsafe Reflection Vulnerability | 63.0% | Yes |
| CVE-2023-2533 | PaperCut NG/MF Cross-Site Request Forgery (CSRF) Vulnerability | 28.8% | Yes |
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