7.2 - CVE-2021-24252

Executive Summary

This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.

Informations
Name	CVE-2021-24252	First vendor Publication	2021-05-06
Vendor	Cve	Last vendor Modification	2022-10-25

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Overall CVSS Score	7.2
Base Score	7.2	Environmental Score	7.2
impact SubScore	5.9	Temporal Score	7.2
Exploitabality Sub Score	1.2

Attack Vector	Network	Attack Complexity	Low
Privileges Required	High	User Interaction	None
Scope	Unchanged	Confidentiality Impact	High
Integrity Impact	High	Availability Impact	High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:S/C:P/I:P/A:P)
Cvss Base Score	6.5	Attack Range	Network
Cvss Impact Score	6.4	Attack Complexity	Low
Cvss Expoit Score	8	Authentication	Requires single instance
Calculate full CVSS 2.0 Vectors scores

Detail

The Event Banner WordPress plugin through 1.3 does not verify the uploaded image file, allowing admin accounts to upload arbitrary files, such as .exe, .php, or others executable, leading to RCE. Due to the lack of CSRF check, the issue can also be used via such vector to achieve the same result, or via a LFI as authorisation checks are missing (but would require WP to be loaded)

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-24252

CWE : Common Weakness Enumeration

%	Id	Name
100 %	CWE-434	Unrestricted Upload of File with Dangerous Type (CWE/SANS Top 25)

Sources (Detail)

Source	Url
CONFIRM	https://wpscan.com/vulnerability/91e81c6d-f24d-4f87-bc13-746715af8f7c
MISC	https://github.com/jinhuang1102/CVE-ID-Reports/blob/master/Event%20Banner.md