Advisory Details

June 25th, 2025

PaperCut NG web-print-hot-folder Link Following Local Privilege Escalation Vulnerability

ZDI-25-420
ZDI-CAN-26241

CVE ID CVE-2024-8404
CVSS SCORE 7.8, AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AFFECTED VENDORS PaperCut
AFFECTED PRODUCTS NG
VULNERABILITY DETAILS

This vulnerability allows local attackers to escalate privileges on affected installations of PaperCut NG. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

The specific flaw exists within the PaperCut Web Print service. By creating a symbolic link, an attacker can abuse the service to delete a file. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM.

ADDITIONAL DETAILS PaperCut has issued an update to correct this vulnerability. More details can be found at:
https://www.papercut.com/kb/Main/security-bulletin-may-2025/
DISCLOSURE TIMELINE
  • 2025-03-19 - Vulnerability reported to vendor
  • 2025-06-25 - Coordinated public release of advisory
  • 2025-06-25 - Advisory Updated
CREDIT Anonymous
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