CVE-2024-1221: Improper access controls on APIs on Linux and macOS in PaperCut NG/MF

Severity: low (CVSS 3.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-03-14 · updated 2026-06-17
Weakness: CWE-76

Description

This vulnerability potentially allows files on a PaperCut NG/MF server to be exposed using a specifically formed payload against the impacted API endpoint. The attacker must carry out some reconnaissance to gain knowledge of a system token. This CVE only affects Linux and macOS PaperCut NG/MF servers.

Affected products

PaperCut MF: before 20.1.10; from 21.0.0 before 21.2.14; from 22.0.0 before 22.1.5; from 23.0.1 before 23.0.7 — fixed in 20.1.10, 21.2.14, 22.1.5, 23.0.7
PaperCut NG: before 20.1.10; from 21.0.0 before 21.2.14; from 22.0.0 before 22.1.5; from 23.0.1 before 23.0.7 — fixed in 20.1.10, 21.2.14, 22.1.5, 23.0.7

How to fix

Upgrade to a fixed version: PaperCut MF 20.1.10, 21.2.14, 22.1.5, 23.0.7; PaperCut NG 20.1.10, 21.2.14, 22.1.5, 23.0.7. Check the vendor advisory for mitigations.

References

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