CVE Vulnerability

CVE-2021-22886

Rocket.Chat before 3.11, 3.10.5, 3.9.7, 3.8.8 is vulnerable to persistent cross-site scripting (XSS) using nested markdown tags allowing a remote attacker to inject arbitrary JavaScript in a message. This flaw leads to arbitrary file read and RCE on Rocket.Chat desktop app.

4.3 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8.6 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

Scope

6.1 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References
Link Resource
https://github.com/RocketChat/Rocket.Chat/pull/20430 Patch Third Party Advisory
https://docs.rocket.chat/guides/security/security-updates Vendor Advisory
https://hackerone.com/reports/1014459 Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:rocket.chat:rocket.chat:3.11.0:rc0:*:*:*:*:*:*
cpe:2.3:a:rocket.chat:rocket.chat:3.11.0:rc1:*:*:*:*:*:*
cpe:2.3:a:rocket.chat:rocket.chat:3.11.0:rc2:*:*:*:*:*:*
cpe:2.3:a:rocket.chat:rocket.chat:3.11.0:rc3:*:*:*:*:*:*
cpe:2.3:a:rocket.chat:rocket.chat:3.11.0:rc4:*:*:*:*:*:*
cpe:2.3:a:rocket.chat:rocket.chat:3.11.0:rc5:*:*:*:*:*:*
cpe:2.3:a:rocket.chat:rocket.chat:3.11.0:rc6:*:*:*:*:*:*
cpe:2.3:a:rocket.chat:rocket.chat:3.11.0:rc7:*:*:*:*:*:*
cpe:2.3:a:rocket.chat:rocket.chat:*:*:*:*:*:*:*:*
cpe:2.3:a:rocket.chat:rocket.chat:*:*:*:*:*:*:*:*
cpe:2.3:a:rocket.chat:rocket.chat:*:*:*:*:*:*:*:*
Information

Published : 2021-03-26 07:15

Updated : 2021-03-30 08:26

NVD link : CVE-2021-22886

Mitre link : CVE-2021-22886

Products Affected
No products.
CWE
CWE-79