CVE-2018-20583

CVSS V2 Medium 4.3 CVSS V3 Medium 6.1
Description
Cross-site scripting (XSS) vulnerability in the PHP League CommonMark library versions 0.15.6 through 0.18.x before 0.18.1 allows remote attackers to insert unsafe URLs into HTML (even if allow_unsafe_links is false) via a newline character (e.g., writing javascript as javascri%0apt).
Overview
  • CVE ID
  • CVE-2018-20583
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2018-12-30T05:29:00
  • Last Modified Date
  • 2019-01-15T16:35:29
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:thephpleague:commonmark:*:*:*:*:*:*:*:* 1 OR 0.15.6 0.18.0
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/thephpleague/commonmark/releases/tag/0.18.1 Release Notes Third Party Advisory
https://github.com/thephpleague/commonmark/issues/337 Exploit Third Party Advisory
https://commonmark.thephpleague.com/changelog/ Release Notes Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2018-20583
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20583
History
Created Old Value New Value Data Type Notes
2022-05-10 17:48:14 Added to TrackCVE
2022-12-03 15:52:23 2018-12-30T05:29Z 2018-12-30T05:29:00 CVE Published Date updated
2022-12-03 15:52:23 2019-01-15T16:35:29 CVE Modified Date updated
2022-12-03 15:52:23 Analyzed Vulnerability Status updated