Discourse is an open source discussion platform. Prior to version 3.1.0.beta7 of the `beta` and `tests-passed` branches, a CSP (Content Security Policy) nonce reuse vulnerability was discovered could allow cross-site scripting (XSS) attacks to bypass CSP protection for anonymous (i.e. unauthenticated) users. There are no known XSS vectors at the moment, but should one be discovered, this vulnerability would allow the XSS attack to bypass CSP and execute successfully. This vulnerability isn't applicable to logged-in users. Version 3.1.0.beta7 contains a patch. The stable branch doesn't have this vulnerability. A workaround to prevent the vulnerability is to disable Google Tag Manager, i.e., unset the `gtm container id` setting.
Metrics
No CVSS v4.0
Attack Vector Network
Attack Complexity High
Privileges Required Low
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact None
User Interaction None
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Key SSVC decision points have not yet been added.
Affected Vendors & Products
Vendors | Products |
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Discourse |
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Configuration 1 [-]
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No data.
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: GitHub_M
Published: 2023-07-28T14:42:06.159Z
Updated: 2024-08-02T17:16:30.242Z
Reserved: 2023-07-06T13:01:36.998Z
Link: CVE-2023-37467
Vulnrichment
No data.
NVD
Status : Analyzed
Published: 2023-07-28T15:15:10.960
Modified: 2023-08-03T18:34:44.600
Link: CVE-2023-37467
Redhat
No data.