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Security advisory

Type: advisorySources: OSVCVE: CVE-2021-41140

Discourse-reactions is a plugin for the Discourse platform that allows user to add their reactions to the post. In affected versions reactions given by user to secure topics and private messages are visible. This issue is patched in version 0.2 of discourse-reaction. Users who are unable to update are advised to disable the Discourse-reactions plugin in admin panel.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2021-41140
Confirmed fixed CVEs
Not specified
Updated in this feed
31 Oct 2026, 11:56 UTC · Revision 1

Source evidence

CVE-2021-41140

core-osv · Original source

Published 19 Oct 2021, 18:15 UTC

Discourse-reactions is a plugin for the Discourse platform that allows user to add their reactions to the post. In affected versions reactions given by user to secure topics and private messages are visible. This issue is patched in version 0.2 of discourse-reaction. Users who are unable to update are advised to disable the Discourse-reactions plugin in admin panel.

osv:CVE-2021-41140
Complete source record
{
  "id": "acf384a89753af946fc5c0678f488e77354a79f1266737694758f2feca556ce6",
  "url": "https://osv.dev/vulnerability/CVE-2021-41140",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-41140",
    "summary": "Discourse-reactions is a plugin for the Discourse platform that allows user to add their reactions to the post. In affected versions reactions given by user to secure topics and private messages are visible. This issue is patched in version 0.2 of discourse-reaction. Users who are unable to update are advised to disable the Discourse-reactions plugin in admin panel.",
    "evidence": "osv:CVE-2021-41140",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2021-41140",
      "aliases": [
        "CVE-2021-41140",
        "GHSA-9358-hwg5-jrmh"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/discourse/discourse-reactions",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "213d90b82fd15c4186ebc290fee18817d9727d0d"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "fixed": "213d90b82fd15c4186ebc290fee18817d9727d0d"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-41140.json"
          }
        }
      ],
      "modified": "2026-10-20T10:54:57.917848187Z",
      "provider": "osv",
      "references": [
        "https://github.com/discourse/discourse-reactions/security/advisories/GHSA-9358-hwg5-jrmh",
        "https://github.com/discourse/discourse-reactions/commit/213d90b82fd15c4186ebc290fee18817d9727d0d"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:a:discourse:discourse_reactions:*:*:*:*:*:discourse:*:*"
            ],
            "vendor_product": "discourse:discourse_reactions",
            "extracted_events": [
              {
                "range": [
                  {
                    "fixed": "0.2"
                  }
                ],
                "source": "CPE_RANGE"
              }
            ]
          },
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "fixed": "0.2"
                  }
                ],
                "source": "DESCRIPTION"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2021-41140",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 386568,
  "published_at": "2021-10-19T18:15:08.03+00:00"
}