Coverage › CVE-2023-27351
CVE-2023-27351 Unmapped
PaperCut NG/MF Improper Authentication Vulnerability
- Vendor / product
- PaperCut — NG/MF
- Description (CISA)
- PaperCut NG/MF contains an improper authentication vulnerability that could allow remote attackers to bypass authentication on affected installations via the SecurityRequestFilter class.
- Added to KEV
- 2026-04-20 — after the latest CTID mapping snapshot (2025-07-28)
- Due date
- 2026-05-04
- Required action
- Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- Known ransomware use
- Known
- CWE
- CWE-287
- CISA notes
- https://www.papercut.com/kb/Main/PO-1216-and-PO-1219
https://nvd.nist.gov/vuln/detail/CVE-2023-27351 - Elsewhere
- cve.org · NVD · CISA KEV · JSON
ATT&CK techniques
No public source states how this vulnerability is exploited in ATT&CK terms.
The only authoritative CVE → ATT&CK mapping in the open — CTID's Mappings Explorer, pinned to a KEV snapshot of 2025-07-28 and ATT&CK 16.1 — does not include CVE-2023-27351. This entry was added to KEV on 2026-04-20, after that snapshot; of the 283 entries added since, 0 have a mapping. CISA's catalogue carries no technique field. kevmap does not infer techniques from the CWE (CWE-287) — here is why — and does not guess.
This page will change state automatically if a mapping is published. What is shown above is everything CISA publishes about the entry.