express-fileupload 1.3.1 File Upload Module unrestricted upload

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.5$0-$5k0.14

A vulnerability was found in express-fileupload 1.3.1. It has been rated as critical. This issue affects an unknown functionality of the component File Upload Module. The manipulation with an unknown input leads to a privilege escalation vulnerability. Using CWE to declare the problem leads to CWE-434. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

An arbitrary file upload vulnerability in the file upload module of Express-Fileupload v1.3.1 allows attackers to execute arbitrary code via a crafted PHP file.

The weakness was released 04/13/2022. The advisory is shared at youtube.com. The identification of this vulnerability is CVE-2022-27140 since 03/14/2022. The attack can only be done within the local network. The successful exploitation needs a simple authentication. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/19/2022).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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CVSSv3infoedit

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.5
VulDB Temp Score: 5.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2infoedit

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfoedit

Class: Privilege escalation
CWE: CWE-434
ATT&CK: Unknown

Local: No
Remote: Partially

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfoedit

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfoedit

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfoedit

03/14/2022 CVE reserved
04/13/2022 +29 days Advisory disclosed
04/13/2022 +0 days VulDB entry created
04/19/2022 +6 days VulDB last update

Sourcesinfoedit

Advisory: youtube.com
Status: Not defined

CVE: CVE-2022-27140 (🔒)

Entryinfoedit

Created: 04/13/2022 11:38 AM
Updated: 04/19/2022 11:16 AM
Changes: (1) source_cve_nvd_summary
Complete: 🔍

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