CVE-2023-43657
7.2 · HIGHOverview
CVE-2023-43657 is a high-severity vulnerability affecting discourse discourse-encrypt. It was published on September 28, 2023 and has a CVSS 3.1 base score of 7.2 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.2, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical 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.
Remediation
Check the references section for vendor advisories and patches from discourse. Update discourse-encrypt to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| discourse | discourse-encrypt | >= 0, < 2023-09-28 | Affected |
References
Frequently Asked Questions
What is CVE-2023-43657?
CVE-2023-43657 is a high-severity vulnerability affecting discourse discourse-encrypt. It was published on September 28, 2023 and has a CVSS 3.1 base score of 7.2 (HIGH).
How severe is CVE-2023-43657?
This vulnerability has a CVSS 3.1 base score of 7.2, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2023-43657?
Check the references section for vendor advisories and patches from discourse. Update discourse-encrypt to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2023-43657?
CyberStrike's AI-powered security agents can automatically detect CVE-2023-43657 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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