CVE-2021-22889

Severity Score

6.1

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Revive Adserver before v5.2.0 is vulnerable to a reflected XSS vulnerability in the `statsBreakdown` parameter of stats.php (and possibly other scripts) due to single quotes not being escaped. An attacker could trick a user with access to the user interface of a Revive Adserver instance into clicking on a specifically crafted URL and pressing a certain key combination to execute injected JavaScript code.

Revive Adserver versiones anteriores a v5.2.0, es susceptible a una vulnerabilidad XSS reflejado en el parámetro "statsBreakdown" del archivo stats.php (y posiblemente otros scripts) debido a que las comillas simples no se escapan. Un atacante podría engañar a un usuario con acceso a la interfaz de usuario de una instancia de Revive Adserver para que haga clic en una URL diseñada específicamente y presionar una determinada combinación de teclas para ejecutar el código JavaScript inyectado

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-01-06 CVE Reserved
2021-03-25 CVE Published
2023-12-09 EPSS Updated
2024-08-03 CVE Updated
2024-08-03 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

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

CAPEC

References (3)

URL	Tag	Source

URL	Date	SRC
https://hackerone.com/reports/1097217	2024-08-03

URL	Date	SRC
https://github.com/revive-adserver/revive-adserver/commit/2f868414	2021-03-27

URL	Date	SRC
https://www.revive-adserver.com/security/revive-sa-2021-003	2021-03-27

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Revive-adserver Search vendor "Revive-adserver"		Revive Adserver Search vendor "Revive-adserver" for product "Revive Adserver"				< 5.2.0 Search vendor "Revive-adserver" for product "Revive Adserver" and version " < 5.2.0"		-		Affected