CVE-2018-1000162

CVSS V2 Medium 4.3 CVSS V3 Medium 6.1
Description
Parsedown version prior to 1.7.0 contains a Cross Site Scripting (XSS) vulnerability in `setMarkupEscaped` for escaping HTML that can result in JavaScript code execution. This attack appears to be exploitable via specially crafted markdown that allows it to side step HTML escaping by breaking AST boundaries. This vulnerability appears to have been fixed in 1.7.0 and later.
Overview
  • CVE ID
  • CVE-2018-1000162
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2018-04-18T19:29:00
  • Last Modified Date
  • 2018-05-21T16:13:11
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:parsedown:parsedown:*:*:*:*:*:*:*:* 1 OR 1.7.0
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
  • 3.0
  • Vector String
  • CVSS:3.0/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/Roave/SecurityAdvisories/issues/44#issuecomment-368594409 Third Party Advisory
https://github.com/erusev/parsedown/pull/495 Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2018-1000162
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1000162
History
Created Old Value New Value Data Type Notes
2022-05-10 18:43:20 Added to TrackCVE
2022-12-03 05:14:30 2018-04-18T19:29Z 2018-04-18T19:29:00 CVE Published Date updated
2022-12-03 05:14:30 2018-05-21T16:13:11 CVE Modified Date updated
2022-12-03 05:14:30 Analyzed Vulnerability Status updated