CVE-2021-39220

CVSS V2 Low 3.5 CVSS V3 Low 3.5
Description
Nextcloud is an open-source, self-hosted productivity platform The Nextcloud Mail application prior to versions 1.10.4 and 1.11.0 does by default not render images in emails to not leak the read state or user IP. The privacy filter failed to filter images with a relative protocol. It is recommended that the Nextcloud Mail application is upgraded to 1.10.4 or 1.11.0. There are no known workarounds aside from upgrading.
Overview
  • CVE ID
  • CVE-2021-39220
  • Assigner
  • security-advisories@github.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-10-25T19:15:09
  • Last Modified Date
  • 2022-08-05T11:05:58
Weakness Enumerations
CWE URL
CWE-20 http://cwe.mitre.org/data/definitions/20.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:nextcloud:mail:*:*:*:*:*:*:*:* 1 OR 1.10.4
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:M/Au:S/C:P/I:N/A:N
  • Access Vector
  • NETWORK
  • Access Compatibility
  • MEDIUM
  • Authentication
  • SINGLE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • NONE
  • Availability Impact
  • NONE
  • Base Score
  • 3.5
  • Severity
  • LOW
  • Exploitability Score
  • 6.8
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • LOW
  • User Interaction
  • REQUIRED
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • LOW
  • Availability Impact
  • NONE
  • Base Score
  • 3.5
  • Base Severity
  • LOW
  • Exploitability Score
  • 2.1
  • Impact Score
  • 1.4
References
Reference URL Reference Tags
https://github.com/nextcloud/mail/pull/5470 Patch Third Party Advisory
https://hackerone.com/reports/1308147 Permissions Required
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-6q9v-wm8r-rcv5 Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-39220
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39220
History
Created Old Value New Value Data Type Notes
2022-05-10 06:49:33 Added to TrackCVE
2022-12-05 13:14:36 2021-10-25T19:15Z 2021-10-25T19:15:09 CVE Published Date updated
2022-12-05 13:14:37 2022-08-05T11:05:58 CVE Modified Date updated
2022-12-05 13:14:37 Analyzed Vulnerability Status updated