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

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CVE-2023-23624

Severity CVSS v4.0:
Pending analysis
Type:
CWE-200 Information Leak / Disclosure
Publication date:
28/01/2023
Last modified:
14/02/2023

Description

Discourse is an open-source discussion platform. Prior to version 3.0.1 on the `stable` branch and version 3.1.0.beta2 on the `beta` and `tests-passed` branches, someone can use the `exclude_tag param` to filter out topics and deduce which ones were using a specific hidden tag. This affects any Discourse site using hidden tags in public categories. This issue is patched in version 3.0.1 on the `stable` branch and version 3.1.0.beta2 on the `beta` and `tests-passed` branches. As a workaround, secure any categories that are using hidden tags, change any existing hidden tags to not include private data, or remove any hidden tags currently in use.

Impact

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

Base Score: 5.30 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

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

Base Score 3.x
5.30
Severity 3.x
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:discourse:discourse:*:*:*:*:stable:*:*:* 3.0.1 (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