CVE-2024-1222Network attack vector

Unauthenticated API privilege escalation via incorrect authorization

Published Mar 14, 2024 · Updated Sep 26, 2024

Authentication bypass in PaperCut NG/MF allows remote attackers to gain elevated API privileges through a crafted request. PrintDeployProxyController incorrectly authorizes a maliciously formed request sent to a misconfigured endpoint within a small subset of APIs. No authentication or user interaction is required, and successful exploitation grants elevated access to the affected API calls.

CVSS severity8.6
High
EPSS probability63.98%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in PaperCut NG/MF allows remote attackers to gain elevated API privileges through a crafted request. PrintDeployProxyController incorrectly authorizes a maliciously formed request sent to a misconfigured endpoint within a small subset of APIs. No authentication or user interaction is required, and successful exploitation grants elevated access to the affected API calls.

The record

CVE
CVE-2024-1222
Published
Mar 14, 2024
Updated
Sep 26, 2024
Vendor
PaperCut
Product
PaperCut MF
Classifications
CWE-250, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 14, 2024CVE publishedPublication date reported by the CVE source.
  2. Sep 26, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <20.1.10
  2. Affected versionversion=0 <21.2.14
  3. Affected versionversion=0 <22.1.5
  4. Affected versionversion=0 <23.0.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

PaperCut · PaperCut MFversion=0 <20.1.10; version=0 <21.2.14; version=0 <22.1.5; version=0 <23.0.7
PaperCut · PaperCut NG/MFversion=0 <20.1.10 changes=[{"at":"20.1.10","status":"unaffected"}]; version=0 <21.2.14 changes=[{"at":"21.2.14","status":"unaffected"}]; version=0 <22.1.5 changes=[{"at":"22.1.5","status":"unaffected"}]; version=0 <23.0.7 changes=[{"at":"23.0.7","status":"unaffected"}]
PaperCut · PaperCut NGversion=0 <20.1.10; version=0 <21.2.14; version=0 <22.1.5; version=0 <23.0.7

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.6PaperCut SoftwareCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-250Execution with Unnecessary Privileges
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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