CVE-2025-22137

Arbitrary File Overwrite via HTTP POST in Pingvin Share

9.8 Critical

Pingvin Share is a self-hosted file sharing platform and an alternative for WeTransfer. This vulnerability allows an authenticated or unauthenticated (if anonymous shares are allowed) user to overwrite arbitrary files on the server, including sensitive system files, via HTTP POST requests. The issue has been patched in version 1.4.0.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

0.60%Up 0.6 points since Jan 9, 2025

What each source reports

CVE List Score used 9.8

Arbitrary File Overwrite via HTTP POST in Pingvin Share

Record: CVE-2025-22137
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-20, CWE-434
Updated: 2026-11-02

EUVDEUVD-2025-2656 9.8

Record: EUVD-2025-2656
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-03

NVD 9.8

Record: CVE-2025-22137
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-20, CWE-434
Updated: 2026-11-02

OSV 9.8

Arbitrary File Overwrite via HTTP POST in Pingvin Share

Record: CVE-2025-22137
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-20, CWE-434
Updated: 2026-11-02

Affected products

stonith404 pingvin-share

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases, published	EUVD
Nov 2, 2026	first indexed	CVE List, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2025-22137 is a critical vulnerability (CVSS 9.8) in Stonith404 Pingvin-share, published January 8, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.60%, the 49th percentile. No source names a fixed version.