{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-110774", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-10-14T17:27:37.426Z", "datePublished": "2026-10-14T18:48:03.347Z", "dateUpdated": "2026-10-15T14:26:13.543Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-10-14T18:48:03.347Z" }, "datePublic": "2026-10-14T00:00:00.000Z", "title": "Blinko through 1.8.8 Private Attachment Read via /api/file Route", "descriptions": [ { "lang": "en", "value": "Blinko through 1.8.8 contains a broken access control vulnerability in the /api/file route that allows authenticated users to read other users' private attachments due to a flawed owner check. Attackers can supply another user's stored filename, following a basename plus millisecond-timestamp pattern, to download private, non-shared attachments." } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "description": "Authorization Bypass Through User-Controlled Key", "cweId": "CWE-639", "type": "CWE" } ] } ], "affected": [ { "vendor": "blinkospace", "product": "blinko", "defaultStatus": "unaffected", "versions": [ { "version": "0", "lessThanOrEqual": "1.8.8", "status": "affected", "versionType": "semver" } ], "collectionURL": "https://github.com/blinkospace/blinko", "packageURL": "pkg:github/blinkospace/blinko", "repo": "https://github.com/blinkospace/blinko" } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:blinko:blinko:*:*:*:*:*:*:*:*", "versionEndIncluding": "1.8.8" } ] } ] } ], "metrics": [ { "format": "CVSS", "cvssV4_0": { "version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 6, "baseSeverity": "MEDIUM" } }, { "format": "CVSS", "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM" } } ], "references": [ { "url": "https://hackmd.io/@hieuPenguinnn/blinko-attachment-accountid-idor", "tags": [ "technical-description", "exploit" ] }, { "url": "https://github.com/blinkospace/blinko/blob/178e4b3538a21823a50ac2481e653d56cb1ffa86/server/routerExpress/file/file.ts#L148", "tags": [ "technical-description" ] }, { "url": "https://github.com/blinkospace/blinko", "tags": [ "product" ] }, { "name": "VulnCheck Advisory: Blinko through 1.8.8 Private Attachment Read via /api/file Route", "tags": [ "third-party-advisory" ], "url": "https://www.vulncheck.com/advisories/blinko-through-1.8.8-private-attachment-read-via-api-file-route" } ], "credits": [ { "lang": "en", "value": "hieuPenguinnn", "type": "finder" } ], "x_generator": { "engine": "vulncheck-endgame" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-10-15T14:25:48.334970Z", "id": "CVE-2026-110774", "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": "2026-10-15T14:26:13.543Z" } } ] } }