CVE-2020-7699

Prototype Pollution

Severity Score

9.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

This affects the package express-fileupload before 1.1.8. If the parseNested option is enabled, sending a corrupt HTTP request can lead to denial of service or arbitrary code execution.

Esto afecta el paquete express-fileupload versiones anteriores a 1.1.8. Si la opción parseNested está habilitada, el envío de una petición HTTP corrupta puede conllevar a una denegación de servicio o una ejecución de código arbitraria

*Credits: po6ix

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-01-21 CVE Reserved
2020-07-16 First Exploit
2020-07-30 CVE Published
2024-09-17 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

CAPEC

References (6)

URL	Tag	Source
https://security.netapp.com/advisory/ntap-20200821-0003	Third Party Advisory

URL	Date	SRC
https://github.com/ossf-cve-benchmark/CVE-2020-7699	2020-07-16
https://github.com/hemaoqi-Tom/CVE-2020-7699_reproduce	2021-11-14
https://github.com/zodiac12-pub/CVE-2020-7699_reproduce	2021-11-14
https://github.com/richardgirges/express-fileupload/issues/236	2024-09-17
https://snyk.io/vuln/SNYK-JS-EXPRESSFILEUPLOAD-595969	2024-09-17

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Express-fileupload Project Search vendor "Express-fileupload Project"		Express-fileupload Search vendor "Express-fileupload Project" for product "Express-fileupload"				< 1.1.8 Search vendor "Express-fileupload Project" for product "Express-fileupload" and version " < 1.1.8"		-		Affected
Netapp Search vendor "Netapp"		Max Data Search vendor "Netapp" for product "Max Data"				-		-		Affected