PaperCut — NG/MF — PaperCut NG/MF contains an improper authentication vulnerability that could allow remote attackers to bypass authentication on affected installations via the SecurityRequestFilter class.
Details
EPSS Score
ⓘ
77.39%
99.5th percentile
Confidence
100%
CISA KEV
Date Added
Apr 20, 2026
Patch Due
May 4, 2026
Used in ransomware campaigns
Required Action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.