CVE-2021-21610

CVSS V2 Medium 4.3 CVSS V3 Medium 6.1
Description
Jenkins 2.274 and earlier, LTS 2.263.1 and earlier does not implement any restrictions for the URL rendering a formatted preview of markup passed as a query parameter, resulting in a reflected cross-site scripting (XSS) vulnerability if the configured markup formatter does not prohibit unsafe elements (JavaScript) in markup.
Overview
  • CVE ID
  • CVE-2021-21610
  • Assigner
  • jenkinsci-cert@googlegroups.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-01-13T16:15:14
  • Last Modified Date
  • 2021-01-15T19:41:32
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:jenkins:jenkins:*:*:*:*:lts:*:*:* 1 OR 2.263.1
cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:* 1 OR 2.274
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://www.jenkins.io/security/advisory/2021-01-13/#SECURITY-2153 Vendor Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-21610
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21610
History
Created Old Value New Value Data Type Notes
2022-05-10 07:27:07 Added to TrackCVE
2022-12-05 20:00:36 2021-01-13T16:15Z 2021-01-13T16:15:14 CVE Published Date updated
2022-12-05 20:00:36 2021-01-15T19:41:32 CVE Modified Date updated
2022-12-05 20:00:36 Analyzed Vulnerability Status updated