CVE-2021-21660

CVSS V2 Low 3.5 CVSS V3 Medium 5.4
Description
Jenkins Markdown Formatter Plugin 0.1.0 and earlier does not sanitize crafted link target URLs, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with the ability to edit any description rendered using the configured markup formatter.
Overview
  • CVE ID
  • CVE-2021-21660
  • Assigner
  • jenkinsci-cert@googlegroups.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-05-25T17:15:08
  • Last Modified Date
  • 2021-06-01T12:18:22
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:markdown_formatter:*:*:*:*:*:jenkins:*:* 1 OR 0.1.0
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:M/Au:S/C:N/I:P/A:N
  • Access Vector
  • NETWORK
  • Access Compatibility
  • MEDIUM
  • Authentication
  • SINGLE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • PARTIAL
  • 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:C/C:L/I:L/A:N
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • LOW
  • User Interaction
  • REQUIRED
  • Scope
  • CHANGED
  • Confidentiality Impact
  • LOW
  • Availability Impact
  • NONE
  • Base Score
  • 5.4
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 2.3
  • Impact Score
  • 2.7
References
Reference URL Reference Tags
https://www.jenkins.io/security/advisory/2021-05-25/#SECURITY-2198 Vendor Advisory
https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-21660 Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/05/25/3 Mailing List Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-21660
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21660
History
Created Old Value New Value Data Type Notes
2022-05-10 16:14:16 Added to TrackCVE
2022-12-05 02:57:30 2021-05-25T17:15Z 2021-05-25T17:15:08 CVE Published Date updated
2022-12-05 02:57:30 2021-06-01T12:18:22 CVE Modified Date updated
2022-12-05 02:57:30 Analyzed Vulnerability Status updated