CVE-2021-24145

Modern Events Calendar Lite < 5.16.5 - Authenticated Arbitrary File Upload leading to RCE

Severity Score

7.2

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Arbitrary file upload in the Modern Events Calendar Lite WordPress plugin, versions before 5.16.5, did not properly check the imported file, allowing PHP ones to be uploaded by administrator by using the 'text/csv' content-type in the request.

Una carga arbitraria de archivos en el plugin de WordPress Modern Events Calendar Lite, versiones anteriores a 5.16.5, no comprobaba apropiadamente el archivo importado, permitiendo que los PHP sean cargados por el administrador al usar el tipo de contenido "text/csv" en la petición

WordPress Modern Events Calendar plugin version 5.16.2 suffers from a remote shell upload vulnerability.

*Credits: Nguyen Van Khanh - SunCSR (Sun* Cyber Security Research)

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-01-14 CVE Reserved
2021-01-29 CVE Published
2021-07-02 First Exploit
2024-08-03 CVE Updated
2025-02-06 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-434: Unrestricted Upload of File with Dangerous Type

CAPEC

References (7)

URL	Tag	Source

URL	Date	SRC
https://packetstorm.news/files/id/163346	2021-07-02
https://packetstorm.news/files/id/163672	2021-07-26
https://www.exploit-db.com/exploits/50082	2021-07-02
https://github.com/dnr6419/CVE-2021-24145	2022-02-17
http://packetstormsecurity.com/files/163346/WordPress-Modern-Events-Calendar-5.16.2-Shell-Upload.html	2024-08-03
http://packetstormsecurity.com/files/163672/WordPress-Modern-Events-Calendar-Remote-Code-Execution.html	2024-08-03
https://wpscan.com/vulnerability/f42cc26b-9aab-4824-8168-b5b8571d1610	2024-08-03

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
Webnus Search vendor "Webnus"		Modern Events Calendar Lite Search vendor "Webnus" for product "Modern Events Calendar Lite"				< 5.16.5 Search vendor "Webnus" for product "Modern Events Calendar Lite" and version " < 5.16.5"		wordpress		Affected