VIR Vulnerability Intelligence Relay

CVE-2023-27350

unknown KEV
Published 2023-04-21 · Modified 2023-04-21
💬 Discuss on Community ✚ Propose mitigation
CVSS v3
—
CVSS v4 NEW
—
not yet in upstream
VIR risk
2.5

Description

PaperCut MF/NG contains an improper access control vulnerability within the SetupCompleted class that allows authentication bypass and code execution in the context of system.

CISA KEV

Vendor
PaperCut
Product
MF/NG
Due date
2023-05-12

Predictions

Exploit likelihood
99%
Patch ETA
—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Exploits

Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.

Exploit-DB

EDB-51391 webapps multiple
MaanVader · 2023-04-25

PaperCut NG/MG 22.0.4 - Authentication Bypass

Source code queued for fetch — refresh in a moment.
EDB-51452 webapps multiple
MaanVader · 2023-05-23

PaperCut NG/MG 22.0.4 - Remote Code Execution (RCE)

Source code queued for fetch — refresh in a moment.

Metasploit modules

exploit_multi/http/papercut_ng_auth_bypass rank 600
PaperCut PaperCutNG Authentication Bypass
Source fetch failed: fetch_error — view the original via the link above.

References

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.