CVE-2021-20631

Severity Score

6.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Improper input validation vulnerability in Custom App of Cybozu Office 10.0.0 to 10.8.4 allows authenticated attacker to alter the data of Custom App via unspecified vectors.

Una vulnerabilidad de comprobación inapropiada de entrada en Custom App de Cybozu Office versiones 10.0.0 hasta 10.8.4, permite a un atacante autenticado alterar los datos de la Custom App por medio de vectores no especificados

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-12-17 CVE Reserved
2021-03-18 CVE Published
2023-03-08 EPSS Updated
2024-08-03 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-20: Improper Input Validation

CAPEC

References (2)

URL	Tag	Source
https://jvn.jp/en/jp/JVN45797538/index.html	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://kb.cybozu.support/article/36871	2021-03-23

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Cybozu Search vendor "Cybozu"		Office Search vendor "Cybozu" for product "Office"				>= 10.0.0 <= 10.8.4 Search vendor "Cybozu" for product "Office" and version " >= 10.0.0 <= 10.8.4"		-		Affected