{"schema":"threatline.record/2","record":{"id":"CVE-2026-117554","aliases":["GHSA-92g9-59rr-c3qg"],"summary":"Admidio before 5.0.17 Event Guest Restriction Bypass via events_function.php","details":"Admidio before 5.0.17 contains an improper access control vulnerability that allows authenticated members to register event guests by submitting the additional_guests field when guests are disallowed. Attackers can set additional_guests to the remaining seat count in modules/events/events_function.php to exhaust event capacity and block other members from registering.","categories":["Unclassified"],"product":"admidio","vendor":"admidio","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-117554","source_modified_at":"2026-10-27T13:07:50.357Z","fetched_at":"2026-10-27T16:27:21.584480Z","product":"admidio","vendor":"admidio","versions":[{"status":"affected","version":"0","lessThan":"5.0.17","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-117554","source_modified_at":"2026-10-27T13:07:50.357Z","fetched_at":"2026-10-27T16:27:21.584480Z","package":{"name":"admidio","ecosystem":null},"version":"5.0.17","basis":"first unaffected version stated in the CVE record"}],"cvss":5.3,"severity":"Medium","kev":{"listed":false},"epss":{"probability":null,"percentile":null,"score_date":null},"published_at":"2026-10-27T13:07:50.357Z","modified_at":"2026-10-27T13:07:50.357Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-117554","fetched_at":"2026-10-27T16:27:21.584480Z","source_modified_at":"2026-10-27T13:07:50.357Z"}],"sources":["CVE List"],"references":[{"source":"CVE List","url":"https://github.com/Admidio/admidio/issues/2231","tags":["issue-tracking"]},{"source":"CVE List","url":"https://github.com/Admidio/admidio","tags":["product"]},{"source":"CVE List","url":"https://github.com/Admidio/admidio/security/advisories/GHSA-92g9-59rr-c3qg","tags":["vendor-advisory"]},{"source":"CVE List","url":"https://github.com/Admidio/admidio/commit/5b0ee3585d2a69a6e85fee00b7b93f3ebc1e44d9","tags":["patch"]},{"source":"CVE List","url":"https://github.com/Admidio/admidio/releases/tag/v5.0.17","tags":["release-notes"]},{"source":"CVE List","url":"https://github.com/Admidio/admidio/blob/v5.0.16/modules/events/events_function.php#L446-L462","tags":["technical-description"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/admidio-before-5.0.17-event-guest-restriction-bypass-via-events-function-php","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-27T13:07:50.357Z","content_hash":"336d07ad38d96ffcbf6457d777195061ef3c864dd6b3c9f55a4370b21137dfc4"}}