CVE-2024-1222: Incorrect authorization controls in PaperCut NG/MF APIs

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 64.0% 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-250

Description

This allows attackers to use a maliciously formed API request to gain access to an API authorization level with elevated privileges. This applies to a small subset of PaperCut NG/MF API calls.

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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