{"id":"CVE-2026-111653","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-111653","generatedAt":"2026-10-28T02:24:47.660Z","title":"53AIHub through 0.5.3 contains a missing authentication vulnerability that allows unauthenticated attackers to overwrite any enterprise's profile by sending PUT requests to /api/enterprises/:id.","description":"53AIHub through 0.5.3 contains a missing authentication vulnerability that allows unauthenticated attackers to overwrite any enterprise's profile by sending PUT requests to /api/enterprises/:id. Because UpdateEnterprise only enforces checks when IS_SAAS is true, attackers can enumerate sequential enterprise IDs and overwrite logos, display names and branding for defacement and phishing.","published":"2026-10-16T18:17:47.000Z","lastModified":"2026-10-23T17:17:21.000Z","status":"Deferred","sourceIdentifier":"disclosure@vulncheck.com","cvss":{"version":"4.0","score":6.9,"severity":"MEDIUM","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/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/M"},"cwe":["CWE-306"],"affected":[],"epss":{"score":0.00446,"percentile":0.38573,"date":"2026-10-26","history":[{"date":"2026-10-17","score":0.00353,"percentile":0.27472}]},"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 (0.45%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-16T18:17:47.000Z","detail":{"score":"6.9","severity":"MEDIUM","publishedAt":"2026-10-16T18:17:46.513Z"},"summary":"New CVE, medium severity (CVSS 6.9)."}],"references":[{"url":"https://github.com/53AI/53AIHub/blob/v0.5.3/api/controller/enterprise.go#L122-L160","source":"disclosure@vulncheck.com"},{"url":"https://github.com/53AI/53AIHub/blob/v0.5.3/api/router/api.go#L54-L66","source":"disclosure@vulncheck.com"},{"url":"https://hackmd.io/@hieuPenguinnn/53aihub-unauth-cross-tenant-enterprise-update","source":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/53aihub-through-0.5.3-missing-authentication-via-put-api-enterprises-id","source":"disclosure@vulncheck.com"},{"url":"https://hackmd.io/@hieuPenguinnn/53aihub-unauth-cross-tenant-enterprise-update","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-111653","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."}