{"id":"CVE-2026-35443","summary":"NamelessMC: Forum reactions bypass the \"view own topics only\" restriction","details":"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.","aliases":["GHSA-wcrf-5gcp-pf64"],"modified":"2026-07-08T08:09:28.338986199Z","published":"2026-06-02T15:50:06.670Z","database_specific":{"cwe_ids":["CWE-862"],"cna_assigner":"GitHub_M","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/35xxx/CVE-2026-35443.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/35xxx/CVE-2026-35443.json"},{"type":"ADVISORY","url":"https://github.com/NamelessMC/Nameless/security/advisories/GHSA-wcrf-5gcp-pf64"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-35443"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/namelessmc/nameless","events":[{"introduced":"a1ee7ef46718836a3a9a4408cb5bc7c5a08b7efc"},{"last_affected":"a1ee7ef46718836a3a9a4408cb5bc7c5a08b7efc"}],"database_specific":{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"= 2.2.4"},{"last_affected":"= 2.2.4"}]}}],"versions":["= 2.2.4","v2.2.4"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-35443.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"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"}]}