CVE-2023-43657

MediumCVSS 6.1/10Last modified Jun 17, 2026

Description

discourse-encrypt is a plugin that provides a secure communication channel through Discourse. Improper escaping of encrypted topic titles could lead to a cross site scripting (XSS) issue when a site has content security policy (CSP) headers disabled. Having CSP disabled is a non-default configuration, and having it disabled with discourse-encrypt installed will result in a warning in the Discourse admin dashboard. This has been fixed in commit `9c75810af9` which is included in the latest version of the discourse-encrypt plugin. Users are advised to upgrade. Users unable to upgrade should ensure that CSP headers are enabled and properly configured.

Metrics

CVSS 3.1 6.1/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Weakness enumeration

CWE-79

Affected software

VendorProductVersions
discoursediscourse-encrypt<= c492904c
discoursediscourse-encrypt<= c492904c

References

Timeline

Published
Sep 28, 2023
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2023-43657: Medium severity, CVSS 6.1 | Vulnix