Main Vulnerability Database Vulnerabilities #VU78763

Reusing a Nonce, Key Pair in Encryption in Discourse - CVE-2023-37467

Published: July 31, 2023 / Updated: December 17, 2025

Vulnerability identifier: #VU78763

CSH Severity: Medium

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:P/U:Green

CVE-ID: CVE-2023-37467

CWE-ID: CWE-323

Exploitation vector: Remote access

Exploit availability: Public exploit is available

Vendor: Civilized Discourse Construction Kit, Inc.

Affected software:
Discourse

Detailed vulnerability description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to the CSP (Content Security Policy) nonce reuse issue. A remote user can bypass CSP protection.

Install updates from vendor's website.