CVE-2021-39183

CVSS V2 Medium 4.3 CVSS V3 Medium 6.1
Description
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.
Overview
  • CVE ID
  • CVE-2021-39183
  • Assigner
  • security-advisories@github.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-12-14T20:15:07
  • Last Modified Date
  • 2021-12-20T20:38:47
Weakness Enumerations
CWE URL
CWE-79 http://cwe.mitre.org/data/definitions/79.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:owncast_project:owncast:*:*:*:*:*:*:*:* 1 OR 0.0.9
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:M/Au:N/C:N/I:P/A:N
  • Access Vector
  • NETWORK
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • PARTIAL
  • Availability Impact
  • NONE
  • Base Score
  • 4.3
  • Severity
  • MEDIUM
  • Exploitability Score
  • 8.6
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • REQUIRED
  • Scope
  • CHANGED
  • Confidentiality Impact
  • LOW
  • Availability Impact
  • NONE
  • Base Score
  • 6.1
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 2.8
  • Impact Score
  • 2.7
References
Reference URL Reference Tags
https://github.com/owncast/owncast/security/advisories/GHSA-2hfj-cxw7-g45p Exploit Patch Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-39183
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39183
History
Created Old Value New Value Data Type Notes
2022-05-10 06:40:36 Added to TrackCVE
2022-12-06 03:50:52 2021-12-14T20:15Z 2021-12-14T20:15:07 CVE Published Date updated
2022-12-06 03:50:52 2021-12-20T20:38:47 CVE Modified Date updated
2022-12-06 03:50:52 Analyzed Vulnerability Status updated