FKIE_CVE-2026-33251

Vulnerability from fkie_nvd - Published: 2026-03-20 23:16 - Updated: 2026-06-17 10:37
Severity
5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Summary
Discourse is an open-source discussion platform. Prior to versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2, an authorization bypass vulnerability in hidden Solved topics may allow unauthorized users to accept or unaccept solutions. Versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 contain a patch. As a workaround, ensure only trusted users are part of the Site Setting for accept_all_solutions_allowed_groups.
References
security-advisories@github.comhttps://github.com/discourse/discourse/security/advisories/GHSA-vm2x-9h8x-7jxmMitigation, Vendor Advisory
Impacted products
Vendor Product Version
discourse discourse *
discourse discourse *
discourse discourse 2026.3.0
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "discourse",
          "vendor": "discourse",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 2026.1.0-latest, \u003c 2026.1.2"
            },
            {
              "status": "affected",
              "version": "\u003e= 2026.2.0-latest, \u003c 2026.2.1"
            },
            {
              "status": "affected",
              "version": "= 2026.3.0-latest"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "4BE96625-3609-410C-B41E-4A824C1A57C0",
              "versionEndExcluding": "2026.1.2",
              "versionStartIncluding": "2026.1.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "FD31CF04-CF2F-4FB9-8880-9243BC7671A7",
              "versionEndExcluding": "2026.2.1",
              "versionStartIncluding": "2026.2.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:discourse:discourse:2026.3.0:*:*:*:latest:*:*:*",
              "matchCriteriaId": "E3FE9277-4F6B-4FD0-991F-F0FB8D226E1C",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Discourse is an open-source discussion platform. Prior to versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2, an authorization bypass vulnerability in hidden Solved topics may allow unauthorized users to accept or unaccept solutions. Versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 contain a patch. As a workaround, ensure only trusted users are part of the Site Setting for accept_all_solutions_allowed_groups."
    },
    {
      "lang": "es",
      "value": "Discourse es una plataforma de discusi\u00f3n de c\u00f3digo abierto. Antes de las versiones 2026.3.0-latest.1, 2026.2.1 y 2026.1.2, una vulnerabilidad de omisi\u00f3n de autorizaci\u00f3n en temas ocultos Resueltos puede permitir a usuarios no autorizados aceptar o anular la aceptaci\u00f3n de soluciones. Las versiones 2026.3.0-latest.1, 2026.2.1 y 2026.1.2 contienen un parche. Como soluci\u00f3n alternativa, aseg\u00farese de que solo los usuarios de confianza formen parte de la configuraci\u00f3n del sitio accept_all_solutions_allowed_groups."
    }
  ],
  "id": "CVE-2026-33251",
  "lastModified": "2026-06-17T10:37:11.703",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.4,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 2.5,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-33251",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-03-24T18:05:06.619850Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-03-20T23:16:47.340",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Mitigation",
        "Vendor Advisory"
      ],
      "url": "https://github.com/discourse/discourse/security/advisories/GHSA-vm2x-9h8x-7jxm"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-863"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}


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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.


Detection rules are retrieved from Rulezet.