CVE-2023-43658

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Source

https://cve.org/CVERecord?id=CVE-2023-43658

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-43658.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2023-43658

Aliases

GHSA-3fwj-f6ww-7hr6

Published

2023-10-16T21:28:57.341Z

Modified

2025-12-05T00:07:29.106134Z

Severity

8.0 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H CVSS Calculator

Summary

Improper escaping of user input in discourse-calendar

Details

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.

Database specific

{
    "cwe_ids": [
        "CWE-79"
    ],
    "cna_assigner": "GitHub_M",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/43xxx/CVE-2023-43658.json"
}

References

Affected packages

Git / github.com/discourse/discourse-calendar

Affected ranges

Type: GIT
Repo: https://github.com/discourse/discourse-calendar
Events: Introduced

0 Unknown introduced commit / All previous commits are affected

Fixed

9788310906febb36822d6823d14f1059c39644de

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-43658.json"