CVE-2021-42118

Stored XSS in TopEase

Severity Score

5.4

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Persistent Cross Site Scripting in Web Applications operating on Business-DNA Solutions GmbH’s TopEase® Platform Version <= 7.1.27 via the Structure Component allows an authenticated remote attacker with Object Modification privileges to inject arbitrary HTML and JavaScript code in an object attribute, which is then rendered in the Structure Component, to alter the intended functionality and steal cookies, the latter allowing for account takeover.

Un ataque de tipo Cross Site Scripting Persistente en aplicaciones web que operan en la plataforma TopEase® de Business-DNA Solutions GmbH, versión versiones anteriores a 7.1.27 incluyéndola, por medio del Componente Structure, permite a un atacante remoto autenticado con privilegios de modificación de objetos inyectar código HTML y JavaScript arbitrario en un atributo de objeto, que luego es renderizado en el componente de estructura, para alterar la funcionalidad prevista y robar cookies, permitiendo esto último la toma de posesión de la cuenta

*Credits: SIX Group Services AG, Cyber Controls

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

Single

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-10-08 CVE Reserved
2021-11-30 CVE Published
2023-06-23 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://confluence.topease.ch/confluence/display/DOC/Release+Notes	2023-11-07

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Businessdnasolutions Search vendor "Businessdnasolutions"		Topease Search vendor "Businessdnasolutions" for product "Topease"				<= 7.1.27 Search vendor "Businessdnasolutions" for product "Topease" and version " <= 7.1.27"		-		Affected