Vulnerability-Lookup

Vulnerability from bitnami_vulndb

Published

2024-03-06 11:00

Modified

2026-09-08 08:34

Summary

Discourse: Presence of read restricted topics may be leaked if tagged with a tag that is visible to all users

Details

Discourse is an open-source discussion platform. Prior to version 3.0.1 of the stable branch and version 3.1.0.beta2 of the beta and tests-passed branches, the count of topics displayed for a tag is a count of all regular topics regardless of whether the topic is in a read restricted category or not. As a result, any users can technically poll a sensitive tag to determine if a new topic is created in a category which the user does not have excess to.

In version 3.0.1 of the stable branch and version 3.1.0.beta2 of the beta and tests-passed branches, the count of topics displayed for a tag defaults to only counting regular topics which are not in read restricted categories. Staff users will continue to see a count of all topics regardless of the topic's category read restrictions.

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Bitnami",
        "name": "discourse",
        "purl": "pkg:bitnami/discourse"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.0.0"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "severity": [
        {
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
          "type": "CVSS_V3"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-23622"
  ],
  "database_specific": {
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    "severity": "Medium"
  },
  "details": "Discourse is an open-source discussion platform. Prior to version 3.0.1 of the `stable` branch and version 3.1.0.beta2 of the `beta` and `tests-passed` branches, the count of topics displayed for a tag is a count of all regular topics regardless of whether the topic is in a read restricted category or not. As a result, any users can technically poll a sensitive tag to determine if a new topic is created in a category which the user does not have excess to. \n\nIn version 3.0.1 of the `stable` branch and version 3.1.0.beta2 of the `beta` and `tests-passed` branches, the count of topics displayed for a tag defaults to only counting regular topics which are not in read restricted categories. Staff users will continue to see a count of all topics regardless of the topic\u0027s category read restrictions.",
  "id": "BIT-discourse-2023-23622",
  "modified": "2026-09-08T08:34:36.952Z",
  "published": "2024-03-06T11:00:06.306Z",
  "references": [
    {
      "type": "FIX",
      "url": "https://github.com/discourse/discourse/commit/105fee978d73b0ec23ff814a09d1c0c9ace95164"
    },
    {
      "type": "FIX",
      "url": "https://github.com/discourse/discourse/commit/ecb9aa5dba94741d9579f4f873f0675f48b4184f"
    },
    {
      "type": "FIX",
      "url": "https://github.com/discourse/discourse/pull/20004"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/discourse/discourse/pull/20005"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/discourse/discourse/security/advisories/GHSA-2wvr-4x7w-v795"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-23622"
    }
  ],
  "schema_version": "1.5.0",
  "summary": "Discourse: Presence of read restricted topics may be leaked if tagged with a tag that is visible to all users"
}

CVE-2023-23622 (GCVE-0-2023-23622)

Vulnerability from cvelistv5 – Published: 2023-03-17 14:17 – Updated: 2025-02-25 14:54

Title

Discourse: Presence of read restricted topics may be leaked if tagged with a tag that is visible to all users

Summary

Discourse is an open-source discussion platform. Prior to version 3.0.1 of the `stable` branch and version 3.1.0.beta2 of the `beta` and `tests-passed` branches, the count of topics displayed for a tag is a count of all regular topics regardless of whether the topic is in a read restricted category or not. As a result, any users can technically poll a sensitive tag to determine if a new topic is created in a category which the user does not have excess to. In version 3.0.1 of the `stable` branch and version 3.1.0.beta2 of the `beta` and `tests-passed` branches, the count of topics displayed for a tag defaults to only counting regular topics which are not in read restricted categories. Staff users will continue to see a count of all topics regardless of the topic's category read restrictions.

Severity

4.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-02-25 14:29 UTC

CWE

CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor

Assigner

GitHub_M mitre root Scorecard

References

5 references

URL	Tags
https://github.com/discourse/discourse/security/a…	x_refsource_CONFIRM
https://github.com/discourse/discourse/pull/20004	x_refsource_MISC
https://github.com/discourse/discourse/pull/20005	x_refsource_MISC
https://github.com/discourse/discourse/commit/105…	x_refsource_MISC
https://github.com/discourse/discourse/commit/ecb…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
discourse	discourse	Affected: stable < 3.0.1 Affected: beta < 3.1.0.beta2 Affected: tests-passed < 3.1.0.beta2

Show details on NVD website

JSON

To clipboard

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        "title": "CVE Program Container"
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        "metrics": [
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                "id": "CVE-2023-23622",
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          "vendor": "discourse",
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              "version": "stable \u003c 3.0.1"
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      "metrics": [
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          "cvssV3_1": {
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        "discovery": "UNKNOWN"
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      "title": "Discourse: Presence of read restricted topics may be leaked if tagged with a tag that is visible to all users"
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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Vulnerability from bitnami_vulndb

CVE-2023-23622 (GCVE-0-2023-23622)

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