What is the CVSS score of CVE-2023-40020?

CVE-2023-40020 has a CVSS 3.1 base score of 8.3 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H. EPSS exploitation probability: 0.4%.

Is there a patch available for CVE-2023-40020?

Yes, a patch is available for CVE-2023-40020. Update the affected software to the latest version immediately.

Privateuploader CVE-2023-40020

HIGH

Improper Authentication (CWE-287)

2023-08-14 security-advisories@github.com

Authentication Bypass Privateuploader

8.3

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.3 HIGH

AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Aug 14, 2023 - 21:15 nvd

HIGH 8.3

DescriptionNVD

PrivateUploader is an open source image hosting server written in Vue and TypeScript. In affected versions app/routes/v3/admin.controller.ts did not correctly verify whether the user was an administrator (High Level) or moderator (Low Level) causing the request to continue processing. The response would be a 403 with ADMIN_ONLY, however, next() would call leading to any updates/changes in the route to process. This issue has been addressed in version 3.2.49. Users are advised to upgrade. There are no known workarounds for this vulnerability.

AnalysisAI

PrivateUploader is an open source image hosting server written in Vue and TypeScript. Rated high severity (CVSS 8.3), this vulnerability is remotely exploitable, low attack complexity. This Improper Authentication vulnerability could allow attackers to bypass authentication mechanisms to gain unauthorized access.

Technical ContextAI

This vulnerability is classified as Improper Authentication (CWE-287), which allows attackers to bypass authentication mechanisms to gain unauthorized access. PrivateUploader is an open source image hosting server written in Vue and TypeScript. In affected versions app/routes/v3/admin.controller.ts did not correctly verify whether the user was an administrator (High Level) or moderator (Low Level) causing the request to continue processing. The response would be a 403 with ADMIN_ONLY, however, next() would call leading to any updates/changes in the route to process. This issue has been addressed in version 3.2.49. Users are advised to upgrade. There are no known workarounds for this vulnerability. Affected products include: Troplo Privateuploader. Version information: version 3.2.49..

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Implement multi-factor authentication, enforce strong password policies, use proven authentication frameworks.