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

2023-10-16T21:28:57Z

Modified

2026-10-28T02:31:00Z

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

{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-79"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/43xxx/CVE-2023-43658.json",
    "unresolved_ranges":  [
        {
            "extracted_events":  [
                {
                    "range":  [
                        {
                            "fixed":  "97883109"
                        }
                    ],
                    "source":  "AFFECTED_FIELD",
                    "strategy":  "StringRangeExpression"
                }
            ]
        }
    ]
}

References

Affected packages

Git / github.com/discourse/discourse-calendar

Affected ranges

Type

GIT

Repo

https://github.com/discourse/discourse-calendar

Events

Introduced

Fixed

9788310906febb36822d6823d14f1059c39644de

Database specific

Show details

{
    "extracted_events":  [
        {
            "range":  [
                {
                    "fixed":  "9788310906febb36822d6823d14f1059c39644de"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        }
    ]
}

Database specific

source

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