CVE-2021-39183

Owncast is an open source, self-hosted live video streaming and chat server. In affected versions inline scripts are executed when Javascript is parsed via a paste action. This issue is patched in 0.0.9 by blocking unsafe-inline Content Security Policy and specifying the script-src. The worker-src is required to be set to blob for the video player.

CVSS v3 6.1 MEDIUM
CVSS v2.0 4.3 MEDIUM

6.1^/10

CVSS v3 : 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/owncast/owncast/security/advisories/GHSA-2hfj-cxw7-g45p	Exploit Patch Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:owncast_project:owncast:*:*:*:*:*:*:*:*

History

20 Dec 2021, 20:38

Type	Values Removed	Values Added
CPE		cpe:2.3:a:owncast_project:owncast::::::::
References	~~(CONFIRM) https://github.com/owncast/owncast/security/advisories/GHSA-2hfj-cxw7-g45p -~~	(CONFIRM) https://github.com/owncast/owncast/security/advisories/GHSA-2hfj-cxw7-g45p - Exploit, Patch, Third Party Advisory
CVSS	v2 : ~~unknown~~ v3 : ~~8.2~~	v2 : 4.3 v3 : 6.1

14 Dec 2021, 20:32

Type	Values Removed	Values Added
New CVE

Information

Published : 2021-12-14 20:15

Updated : 2024-02-04 22:08

NVD link : CVE-2021-39183

Mitre link : CVE-2021-39183

CVE.ORG link : CVE-2021-39183

JSON object : View

Products Affected

owncast_project

owncast

CWE

CWE-79

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

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