CVE-2020-20691

Severity Score

6.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

An issue in Monstra CMS v3.0.4 allows attackers to execute arbitrary web scripts or HTML via bypassing the file extension filter and uploading crafted HTML files.

Un problema en Monstra CMS versión v3.0.4, permite a atacantes ejecutar scripts web o HTML arbitrarios por medio de una omisión del filtro de extensión de archivos y la carga de archivos HTML diseñados

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-08-13 CVE Reserved
2021-09-27 CVE Published
2024-08-04 CVE Updated
2024-08-04 First Exploit
2024-12-17 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-434: Unrestricted Upload of File with Dangerous Type

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC
https://github.com/monstra-cms/monstra/issues/461	2024-08-04

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
Monstra Search vendor "Monstra"		Monstra Cms Search vendor "Monstra" for product "Monstra Cms"				3.0.4 Search vendor "Monstra" for product "Monstra Cms" and version "3.0.4"		-		Affected