CVE-2021-31330

Severity Score

5.4

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A Cross-Site Scripting (XSS) vulnerability exists within Review Board versions 3.0.20 and 4.0 RC1 and earlier. An authenticated attacker may inject malicious Javascript code when using Markdown editing within the application which remains persistent.

Se presenta una vulnerabilidad de tipo cross-Site Scripting (XSS) en las versiones de Review Board 3.0.20 y 4.0 RC1 y anteriores. Un atacante autenticado puede inyectar código Javascript malicioso cuando es usada la edición de Markdown dentro de la aplicación, que permanece persistente

*Credits: N/A

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

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

2021-04-15 CVE Reserved
2022-05-11 CVE Published
2023-12-02 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 (4)

URL	Tag	Source

URL	Date	SRC
https://mattschmidt.net/2021/04/14/review-board-xss-discovered	2024-08-03

URL	Date	SRC

URL	Date	SRC
https://www.reviewboard.org/docs/releasenotes/reviewboard/3.0.21	2022-05-20
https://www.reviewboard.org/docs/releasenotes/reviewboard/4.0-rc-2	2022-05-20
https://www.reviewboard.org/news/2021/04/14/review-board-3-0-21-and-4-0-rc-2-security-bug-fixes-and-docker	2022-05-20

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Reviewboard Search vendor "Reviewboard"		Review Board Search vendor "Reviewboard" for product "Review Board"				3.0.20 Search vendor "Reviewboard" for product "Review Board" and version "3.0.20"		-		Affected
Reviewboard Search vendor "Reviewboard"		Review Board Search vendor "Reviewboard" for product "Review Board"				4.0 Search vendor "Reviewboard" for product "Review Board" and version "4.0"		beta1		Affected
Reviewboard Search vendor "Reviewboard"		Review Board Search vendor "Reviewboard" for product "Review Board"				4.0 Search vendor "Reviewboard" for product "Review Board" and version "4.0"		beta2		Affected
Reviewboard Search vendor "Reviewboard"		Review Board Search vendor "Reviewboard" for product "Review Board"				4.0 Search vendor "Reviewboard" for product "Review Board" and version "4.0"		rc1		Affected