{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-35443","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-04-02T19:25:52.192Z","datePublished":"2026-06-02T15:50:06.670Z","dateUpdated":"2026-06-02T18:08:08.554Z"},"containers":{"cna":{"title":"NamelessMC: Forum reactions bypass the \"view own topics only\" restriction","problemTypes":[{"descriptions":[{"cweId":"CWE-862","lang":"en","description":"CWE-862: Missing Authorization","type":"CWE"}]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"LOW","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0"}}],"references":[{"name":"https://github.com/NamelessMC/Nameless/security/advisories/GHSA-wcrf-5gcp-pf64","tags":["x_refsource_CONFIRM"],"url":"https://github.com/NamelessMC/Nameless/security/advisories/GHSA-wcrf-5gcp-pf64"}],"affected":[{"vendor":"NamelessMC","product":"Nameless","versions":[{"version":"= 2.2.4","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-06-02T15:50:06.670Z"},"descriptions":[{"lang":"en","value":"NamelessMC is website software for Minecraft servers. In version 2.2.4, `modules/Forum/classes/ForumPostReactionContext.php` only verifies that the caller can view the forum, but it does not re-enforce topic-level `view_other_topics` authorization. As a result, in forums where users may enter the forum but may only view their own topics, reactions can still be read and modified on other users' topics. Version 2.2.5 fixes the issue."}],"source":{"advisory":"GHSA-wcrf-5gcp-pf64","discovery":"UNKNOWN"}},"adp":[{"references":[{"url":"https://github.com/NamelessMC/Nameless/security/advisories/GHSA-wcrf-5gcp-pf64","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-06-02T18:07:36.709543Z","id":"CVE-2026-35443","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-06-02T18:08:08.554Z"}}]}}