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NVD / CVE Program· CNA PaperCut

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

Noroxi assessment

Priority: Plan (action score 58/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 63.9% (FIRST EPSS); higher than 99.2% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • According to CISA the attack is automatable: targets can be found by mass scanning.
  • Fixed version: PaperCut PaperCut NG, PaperCut MF 20.1.10, 21.2.14, 22.1.5.

Add it to your regular patch cycle. Upgrade to PaperCut PaperCut NG, PaperCut MF 20.1.10, 21.2.14, 22.1.5 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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.

CriticalCVSS 9.8 · v3.1—No exploit Fix available
Published
Mar 13, 2024
Updated
Jun 17, 2026
EPSS
63.9% · 99th percentile

Report tools

JSON

Action score

58

Plan

Add it to your regular patch cycle.

CVSS
39 / 40 · 9.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
19 / 30 · 63.9%

CISA SSVC decision

Exploitation
none
Automatable
yes
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
9.8
CNA · PaperCut
8.6
1.2 point gap

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2024-1222

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

One daily email digest (06:00 UTC); connect a webhook for KEV listings and weaponized exploits instantly.

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
papercutpapercut mf
papercutpapercut ng
applemacos
linuxlinux kernel
microsoftwindows

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • papercut papercut mfbefore 20.1.10
  • papercut papercut mf21.0.0 and later · before 21.2.14
  • papercut papercut mf22.0.0 and later · before 22.1.5
  • papercut papercut mf23.0.1 and later · before 23.0.7
  • papercut papercut ngbefore 20.1.10
  • papercut papercut ng21.0.0 and later · before 21.2.14
  • papercut papercut ng22.0.0 and later · before 22.1.5
  • papercut papercut ng23.0.1 and later · before 23.0.7

Versions reported by the vendor

Affected version ranges reported by the assigning authority (PaperCut). Independent of NVD's CPE analysis and usually ahead of it.

  • PaperCut PaperCut NG, PaperCut MF

    • before 23.0.7affectedfixed in 23.0.7
    • before 22.1.5affectedfixed in 22.1.5
    • before 21.2.14affectedfixed in 21.2.14
    • before 20.1.10affectedfixed in 20.1.10

Same product

papercut: all records

Other highest-scoring records for the same primary product.

  • CVE-2023-27350This vulnerability allows remote attackers to bypass authentication on affected installations of PaperCut NG 22.0.5 (Build 63914).KEV
    99Now
  • CVE-2026-81578PaperCut MF/NG: Authentication BypassKEV
    90Now
  • CVE-2026-82078PaperCut MF/NG: Unsafe Dynamic Class Loading in Database ConnectorKEV
    86Now

Published before and after this one in the same product

  • ← EarlierCVE-2023-6006Nov 14, 2023 · Privilege Escalation Vulnerability
    26Monitor
  • ← EarlierCVE-2024-1221Mar 13, 2024 · Improper access controls on APIs on Linux and macOS in PaperCut NG/MF
    12Monitor
  • Later →CVE-2024-1223Mar 13, 2024 · Improper authorization controls in PaperCut NG/MF
    19Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
PaperCut PaperCut NG, PaperCut MF20.1.10Vendor (CNA)
PaperCut PaperCut NG, PaperCut MF21.2.14Vendor (CNA)
PaperCut PaperCut NG, PaperCut MF22.1.5Vendor (CNA)
PaperCut PaperCut NG, PaperCut MF23.0.7Vendor (CNA)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2023-6006120 days apartPrivilege Escalation Vulnerability
    26Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-250 · Execution with Unnecessary Privileges

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records