{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-08-01T18:19:43.230","vulnerabilities":[{"cve":{"id":"CVE-2026-28282","sourceIdentifier":"security-advisories@github.com","published":"2026-03-19T22:16:31.317","lastModified":"2026-06-17T10:28:25.610","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"Discourse is an open-source discussion platform. Versions prior to 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 have a security flaw in the discourse-policy plugin which allowed a user with policy creation permission to gain membership access to any private/restricted groups. Once membership to a private/restricted group has been obtained, the user will be able to read private topics that only the group has access to. Versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 contain a patch. As a workaround, review all policies for the use of `add-users-to-group` and temporarily remove the attribute from the policy. Alternatively, disable the discourse-policy plugin by disabling the `policy_enabled` site setting."},{"lang":"es","value":"Discourse es una plataforma de discusión de código abierto. Las versiones anteriores a 2026.3.0-latest.1, 2026.2.1 y 2026.1.2 tienen una falla de seguridad en el plugin discourse-policy que permitía a un usuario con permiso de creación de políticas obtener acceso de membresía a cualquier grupo privado/restringido. Una vez que se ha obtenido la membresía a un grupo privado/restringido, el usuario podrá leer temas privados a los que solo el grupo tiene acceso. Las versiones 2026.3.0-latest.1, 2026.2.1 y 2026.1.2 contienen un parche. Como solución alternativa, revise todas las políticas para el uso de 'add-users-to-group' y elimine temporalmente el atributo de la política. Alternativamente, deshabilite el plugin discourse-policy deshabilitando la configuración del sitio 'policy_enabled'."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"discourse","product":"discourse","versions":[{"version":">= 2026.1.0-latest, < 2026.1.2","status":"affected"},{"version":">= 2026.2.0-latest, < 2026.2.1","status":"affected"},{"version":"= 2026.3.0-latest","status":"affected"}]}]}],"metrics":{"cvssMetricV40":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","baseScore":2.3,"baseSeverity":"LOW","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","confidentialityRequirement":"NOT_DEFINED","integrityRequirement":"NOT_DEFINED","availabilityRequirement":"NOT_DEFINED","modifiedAttackVector":"NOT_DEFINED","modifiedAttackComplexity":"NOT_DEFINED","modifiedAttackRequirements":"NOT_DEFINED","modifiedPrivilegesRequired":"NOT_DEFINED","modifiedUserInteraction":"NOT_DEFINED","modifiedVulnConfidentialityImpact":"NOT_DEFINED","modifiedVulnIntegrityImpact":"NOT_DEFINED","modifiedVulnAvailabilityImpact":"NOT_DEFINED","modifiedSubConfidentialityImpact":"NOT_DEFINED","modifiedSubIntegrityImpact":"NOT_DEFINED","modifiedSubAvailabilityImpact":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED"}}],"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","baseScore":6.5,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE"},"exploitabilityScore":2.8,"impactScore":3.6}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-03-20T17:00:56.189009Z","id":"CVE-2026-28282","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-863"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:*","versionStartIncluding":"2026.1.0","versionEndExcluding":"2026.1.2","matchCriteriaId":"4BE96625-3609-410C-B41E-4A824C1A57C0"},{"vulnerable":true,"criteria":"cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:*","versionStartIncluding":"2026.2.0","versionEndExcluding":"2026.2.1","matchCriteriaId":"FD31CF04-CF2F-4FB9-8880-9243BC7671A7"},{"vulnerable":true,"criteria":"cpe:2.3:a:discourse:discourse:2026.3.0:*:*:*:latest:*:*:*","matchCriteriaId":"E3FE9277-4F6B-4FD0-991F-F0FB8D226E1C"}]}]}],"references":[{"url":"https://github.com/discourse/discourse/commit/64e2514ac17046cfaa8bc68a3c5140bc40736add","source":"security-advisories@github.com","tags":["Patch"]},{"url":"https://github.com/discourse/discourse/commit/c14b8a4cc5fc94e4839a83c5d55765897589f45b","source":"security-advisories@github.com","tags":["Patch"]},{"url":"https://github.com/discourse/discourse/commit/dcde9de530f515e88f99957056ffbcc2e1e03951","source":"security-advisories@github.com","tags":["Patch"]},{"url":"https://github.com/discourse/discourse/security/advisories/GHSA-6cc8-x3rm-j5pf","source":"security-advisories@github.com","tags":["Vendor Advisory"]}]}}]}