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.

CVSS v3.0 6.1 MEDIUM
CVSS v2.0 4.3 MEDIUM

6.1^/10

CVSS v3.0 : MEDIUM

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

4.3^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:N/C:N/I:P/A:N

Exploitability : 8.6 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

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

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Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:rocket.chat:rocket.chat::::::::
	cpe:2.3:a:rocket.chat:rocket.chat::::::::
	cpe:2.3:a:rocket.chat:rocket.chat::::::::
	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::::::

Information

Published : 2021-03-26 12:15

Updated : 2021-03-30 13:26

NVD link : CVE-2021-22886

Mitre link : CVE-2021-22886

JSON object : View

CWE

CWE-79

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

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Products Affected

rocket.chat

rocket.chat

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