{"id":"CVE-2026-33354","state":"PUBLISHED","title":"AVideo has an authenticated arbitrary local file read via `chunkFile` path injection in `aVideoEncoder.json.php`","description":"WWBN AVideo is an open source video platform. In versions up to and including 26.0, `POST /objects/aVideoEncoder.json.php` accepts a requester-controlled `chunkFile` parameter intended for staged upload chunks. Instead of restricting that path to trusted server-generated chunk locations, the endpoint accepts arbitrary local filesystem paths that pass `isValidURLOrPath()`. That helper allows files under broad server directories including `/var/www/`, the application root, cache, tmp, and `videos`, only rejecting `.php` files. For an authenticated uploader editing their own video, this becomes an arbitrary local file read. The endpoint copies the attacker-chosen local file into the attacker's public video storage path, after which it can be downloaded over HTTP. Commit 59bbd601a3f65a5b18c1d9e4eb11471c0a59214f contains a patch for the issue.","publishedAt":"2026-03-23T13:58:13.712Z","updatedAt":"2026-03-25T14:13:08.253Z","severity":{"score":7.6,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L","source":"GitHub_M"},"assigner":"GitHub_M","products":["WWBN AVideo"],"affected":[{"vendor":"WWBN","product":"AVideo","versions":[{"version":"<= 26.0","status":"affected"}]}],"references":["https://github.com/WWBN/AVideo/security/advisories/GHSA-4jw9-5hrc-m4j6","https://github.com/WWBN/AVideo/commit/59bbd601a3f65a5b18c1d9e4eb11471c0a59214f"],"weaknesses":["CWE-73"],"ingestedAt":"2026-10-29T20:11:40.391Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/33xxx/CVE-2026-33354.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-33354","state":"PUBLISHED","datePublished":"2026-03-23T13:58:13.712Z","dateUpdated":"2026-03-25T14:13:08.253Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-03-18T22:15:11.814Z"},"containers":{"cna":{"title":"AVideo has an authenticated arbitrary local file read via `chunkFile` path injection in `aVideoEncoder.json.php`","descriptions":[{"lang":"en","value":"WWBN AVideo is an open source video platform. In versions up to and including 26.0, `POST /objects/aVideoEncoder.json.php` accepts a requester-controlled `chunkFile` parameter intended for staged upload chunks. Instead of restricting that path to trusted server-generated chunk locations, the endpoint accepts arbitrary local filesystem paths that pass `isValidURLOrPath()`. That helper allows files under broad server directories including `/var/www/`, the application root, cache, tmp, and `videos`, only rejecting `.php` files. For an authenticated uploader editing their own video, this becomes an arbitrary local file read. The endpoint copies the attacker-chosen local file into the attacker's public video storage path, after which it can be downloaded over HTTP. Commit 59bbd601a3f65a5b18c1d9e4eb11471c0a59214f contains a patch for the issue."}],"affected":[{"vendor":"WWBN","product":"AVideo","versions":[{"version":"<= 26.0","status":"affected"}]}],"references":[{"url":"https://github.com/WWBN/AVideo/security/advisories/GHSA-4jw9-5hrc-m4j6","name":"https://github.com/WWBN/AVideo/security/advisories/GHSA-4jw9-5hrc-m4j6","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/WWBN/AVideo/commit/59bbd601a3f65a5b18c1d9e4eb11471c0a59214f","name":"https://github.com/WWBN/AVideo/commit/59bbd601a3f65a5b18c1d9e4eb11471c0a59214f","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":7.6,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-73","lang":"en","description":"CWE-73: External Control of File Name or Path","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-03-23T13:58:13.712Z"},"source":{"advisory":"GHSA-4jw9-5hrc-m4j6","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-25T14:12:12.119949Z","id":"CVE-2026-33354","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-03-25T14:13:08.253Z"}}]}}}