Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Informations
Name CVE-2023-43658 First vendor Publication 2023-10-16
Vendor Cve Last vendor Modification 2023-10-20

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Overall CVSS Score 6.1
Base Score 6.1 Environmental Score 6.1
impact SubScore 2.7 Temporal Score 6.1
Exploitabality Sub Score 2.8
 
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction Required
Scope Changed Confidentiality Impact Low
Integrity Impact Low Availability Impact None
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

dicourse-calendar is a plugin for the Discourse messaging platform which adds the ability to create a dynamic calendar in the first post of a topic. Improper escaping of event titles could lead to Cross-site Scripting (XSS) within the 'email preview' UI when a site has CSP disabled. Having CSP disabled is a non-default configuration, so the vast majority of sites are unaffected. This problem is resolved in the latest version of the discourse-calendar plugin. Users are advised to upgrade. Users unable to upgrade should ensure CSP is enabled on the forum.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-43658

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-79 Failure to Preserve Web Page Structure ('Cross-site Scripting') (CWE/SANS Top 25)

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1

Sources (Detail)

Source Url
MISC https://developer.mozilla.org/en-US/docs/Web/HTTP/CSP
https://github.com/discourse/discourse-calendar/commit/9788310906febb36822d68...
https://github.com/discourse/discourse-calendar/security/advisories/GHSA-3fwj...

Alert History

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0
1
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Date Informations
2023-10-20 21:27:23
  • Multiple Updates
2023-10-17 17:27:21
  • Multiple Updates
2023-10-17 05:27:20
  • First insertion