{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-56345", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-06-20T18:13:07.363Z", "datePublished": "2026-06-20T18:27:12.134Z", "dateUpdated": "2026-06-23T02:38:32.930Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-06-20T18:27:12.134Z" }, "datePublic": "2026-05-11T00:00:00.000Z", "title": "AVideo - Arbitrary User Session Hijacking via Meet Plugin uploadRecordedVideo Endpoint", "descriptions": [ { "lang": "en", "value": "AVideo through 29.0 contains an authorization bypass vulnerability in the Meet plugin's uploadRecordedVideo.json.php endpoint that derives the target users_id from the uploaded filename without verification. An attacker with knowledge of the Meet shared secret can craft a malicious file upload with a filename containing an arbitrary users_id to invoke passwordless User->login() and establish an authenticated session as any user including admin. Attackers can obtain the Meet shared secret through path-traversal vulnerabilities or timing attacks against checkToken.json.php, then POST a crafted file to uploadRecordedVideo.json.php with a filename like '1-anything.mp4' to hijack admin sessions and gain full account takeover." } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "description": "Improper Authentication", "cweId": "CWE-287", "type": "CWE" } ] } ], "affected": [ { "vendor": "AVideo", "product": "AVideo", "defaultStatus": "unaffected", "packageURL": "pkg:composer/wwbn/avideo", "versions": [ { "version": "0", "status": "affected", "versionType": "custom", "lessThanOrEqual": "29.0" } ] } ], "metrics": [ { "format": "CVSS", "cvssV4_0": { "version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N", "attackVector": "NETWORK", "attackComplexity": "HIGH", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 9.2, "baseSeverity": "CRITICAL" } }, { "format": "CVSS", "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseScore": 8.1, "baseSeverity": "HIGH" } } ], "references": [ { "url": "https://github.com/WWBN/AVideo/security/advisories/GHSA-qxvm-r42f-5p8j", "name": "GHSA Advisory GHSA-qxvm-r42f-5p8j", "tags": [ "vendor-advisory" ] }, { "name": "VulnCheck Advisory: AVideo - Arbitrary User Session Hijacking via Meet Plugin uploadRecordedVideo Endpoint", "tags": [ "third-party-advisory" ], "url": "https://www.vulncheck.com/advisories/avideo-arbitrary-user-session-hijacking-via-meet-plugin-uploadrecordedvideo-endpoint" } ], "x_generator": { "engine": "vulncheck" }, "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:wwbn:avideo:*:*:*:*:*:*:*:*", "versionEndIncluding": "29.0" } ] } ] } ], "credits": [ { "lang": "en", "value": "offset", "type": "reporter" } ] }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-06-23T02:38:20.160424Z", "id": "CVE-2026-56345", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-23T02:38:32.930Z" } } ] } }