{"id":"CVE-2026-111358","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-111358","generatedAt":"2026-10-28T05:28:30.925Z","title":"SendPortal sendportal-core through 4.0.1 contains an authorization bypass vulnerability that allows authenticated workspace members to attach subscribers to other workspaces' tags by supplying unvalidated tag IDs.","description":"SendPortal sendportal-core through 4.0.1 contains an authorization bypass vulnerability that allows authenticated workspace members to attach subscribers to other workspaces' tags by supplying unvalidated tag IDs. Attackers can submit sequential tag IDs via the web subscriber form or CSV import to receive victim campaign content and skew victim reports.","published":"2026-10-15T22:19:34.000Z","lastModified":"2026-10-16T18:25:45.000Z","status":"Deferred","sourceIdentifier":"disclosure@vulncheck.com","cvss":{"version":"4.0","score":5.3,"severity":"MEDIUM","vector":"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-639"],"affected":[],"epss":{"score":0.00319,"percentile":0.24755,"date":"2026-10-27","history":[{"date":"2026-10-16","score":0.0026,"percentile":0.1656}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.32%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-15T22:19:34.000Z","detail":{"score":"5.3","severity":"MEDIUM","publishedAt":"2026-10-15T22:19:33.793Z"},"summary":"New CVE, medium severity (CVSS 5.3)."}],"references":[{"url":"https://github.com/mettle/sendportal-core","source":"disclosure@vulncheck.com"},{"url":"https://github.com/mettle/sendportal-core/blob/v4.0.1/src/Http/Requests/SubscriberRequest.php#L34-L37","source":"disclosure@vulncheck.com"},{"url":"https://github.com/mettle/sendportal-core/blob/v4.0.1/src/Repositories/Subscribers/BaseSubscriberTenantRepository.php#L48-L51","source":"disclosure@vulncheck.com"},{"url":"https://hackmd.io/@hieuPenguinnn/sendportal-subscriber-tags-cross-workspace-attach","source":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/sendportal-sendportal-core-through-4.0.1-cross-workspace-tag-attachment-via-subscriber-form","source":"disclosure@vulncheck.com"},{"url":"https://hackmd.io/@hieuPenguinnn/sendportal-subscriber-tags-cross-workspace-attach","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-111358","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}