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

Go to Calendar     Go to Press Room     Go to Newsletters subscription

Search

CVE-2023-22468

Severity CVSS v4.0:
Pending analysis
Type:
CWE-79 Cross-Site Scripting (XSS)
Publication date:
26/01/2023
Last modified:
07/11/2023

Description

Discourse is an open source platform for community discussion. Versions prior to 2.8.13 (stable), 3.0.0.beta16 (beta) and 3.0.0beta16 (tests-passed), are vulnerable to cross-site Scripting. A maliciously crafted URL can be included in a post to carry out cross-site scripting attacks on sites with disabled or overly permissive CSP (Content Security Policy). Discourse's default CSP prevents this vulnerability. This vulnerability is patched in versions 2.8.13 (stable), 3.0.0.beta16 (beta) and 3.0.0beta16 (tests-passed). As a workaround, enable and/or restore your site's CSP to the default one provided with Discourse.

Impact

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

Base Score: 5.40 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

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

Base Score 3.x
5.40
Severity 3.x
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:* 2.8.13 (excluding)
cpe:2.3:a:discourse:discourse:2.9.0:beta1:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:2.9.0:beta10:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:2.9.0:beta11:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:2.9.0:beta12:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:2.9.0:beta13:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:2.9.0:beta14:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:2.9.0:beta2:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:2.9.0:beta3:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:2.9.0:beta4:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:2.9.0:beta5:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:2.9.0:beta6:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:2.9.0:beta7:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:2.9.0:beta8:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:2.9.0:beta9:*:*:beta:*:*:*

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


References to Advisories, Solutions, and Tools