AEGLIX vulnerability intelligence
CVE-2023-27351
HIGH · CVSS 7.5 · Analyzed
Published: 2023-04-20 · Updated: 2026-10-01 · Source: NVD
Vulnerability overview
This vulnerability allows remote attackers to bypass authentication on affected installations of PaperCut NG 22.0.5 (Build 63914). Authentication is not required to exploit this vulnerability. The specific flaw exists within the SecurityRequestFilter class. The issue results from improper implementation of the authentication algorithm. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-19226.
Severity and scoring
- CVSS score
- 7.5 · HIGH
- CVSS version
- 3.1
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- Weaknesses
- CWE-287
CVSS measures technical severity; it does not establish whether this vulnerability is being exploited in your environment.
Known exploitation and remediation
Listed in CISA’s Known Exploited Vulnerabilities catalog.
- Affected product
- PaperCut · NG/MF
- Added to catalog
- 2026-04-20
- 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.
- CISA remediation due date
- 2026-05-04
CISA deadlines apply to the organizations covered by its directives. Confirm your own remediation requirements.
Verify affected versions and patch availability in the vendor advisory before making changes.
Affected products and versions
cpe:2.3:a:papercut:papercut_mf:*:*:*:*:*:*:*:*
From (inclusive): 15.0
Before (exclusive): 20.1.7
cpe:2.3:a:papercut:papercut_mf:*:*:*:*:*:*:*:*
From (inclusive): 21.0.0
Before (exclusive): 21.2.11
cpe:2.3:a:papercut:papercut_mf:*:*:*:*:*:*:*:*
From (inclusive): 22.0.0
Before (exclusive): 22.0.9
cpe:2.3:a:papercut:papercut_ng:*:*:*:*:*:*:*:*
From (inclusive): 15.0
Before (exclusive): 20.1.7
cpe:2.3:a:papercut:papercut_ng:*:*:*:*:*:*:*:*
From (inclusive): 21.0.0
Before (exclusive): 21.2.11
cpe:2.3:a:papercut:papercut_ng:*:*:*:*:*:*:*:*
From (inclusive): 22.0.0
Before (exclusive): 22.0.9
These are NVD CPE applicability entries. Some products depend on configuration conditions; consult the official record to confirm applicability.
Advisories and references
- https://www.papercut.com/kb/Main/PO-1216-and-PO-1219
Vendor Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-23-232/
Third Party Advisory · VDB Entry
- https://www.papercut.com/kb/Main/PO-1216-and-PO-1219
Vendor Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-23-232/
Third Party Advisory · VDB Entry
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-27351
US Government Resource