VulnScan

PaperCut MF/NG: Authentication Bypass

What is CVE-2026-81578?

Original source data

An improper access control vulnerability exists in the web management interface of PaperCut MF and PaperCut NG. Under specific conditions, unauthenticated remote requests targeting administrative functions can trigger backend actions prior to the completion of access validation checks. This allows an unauthenticated remote attacker to modify certain system configurations.

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Overview

Original source data

An improper access control vulnerability exists in the web management interface of PaperCut MF and PaperCut NG. Under specific conditions, unauthenticated remote requests targeting administrative functions can trigger backend actions prior to the completion of access validation checks. This allows an unauthenticated remote attacker to modify certain system configurations.

Affected products and scope

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Technical details

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Exploitability

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Technical impact

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Business impact

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Remediation

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Detection

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Sources (4)
GCVE / Vulnerability-Lookup
CVE Program
FIRST EPSS
CISA Known Exploited Vulnerabilities

Other references

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