Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2023-36473

Severity CVSS v4.0:
Pending analysis
Type:
CWE-79 Cross-Site Scripting (XSS)
Publication date:
13/07/2023
Last modified:
25/07/2023

Description

Discourse is an open source discussion platform. A CSP (Content Security Policy) nonce reuse vulnerability could allow XSS attacks to bypass CSP protection. There are no known XSS vectors at the moment, but should one be discovered, this vulnerability would allow the XSS attack to completely bypass CSP. The vulnerability is patched in the latest tests-passed, beta and stable branches.<br />

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N CVSS v3.1 Severity and Metrics:

Base Score: 6.10 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope (S): Changed
Confidentiality (C): Low
Integrity (I): Low
Availability (A): None

Base Score 3.x
6.10
Severity 3.x
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:discourse:discourse:*:*:*:*:stable:*:*:* 3.0.5 (excluding)
cpe:2.3:a:discourse:discourse:1.1.0:beta1:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:1.1.0:beta2:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:1.1.0:beta3:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:1.1.0:beta4:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:1.1.0:beta5:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:1.1.0:beta6:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:1.1.0:beta6b:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:1.1.0:beta7:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:1.1.0:beta8:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:1.2.0:beta1:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:1.2.0:beta2:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:1.2.0:beta3:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:1.2.0:beta4:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:1.2.0:beta5:*:*:beta:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools