{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-33482", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-03-20T16:16:48.970Z", "datePublished": "2026-03-23T14:10:10.157Z", "dateUpdated": "2026-03-23T18:08:31.712Z"}, "containers": {"cna": {"title": "AVideo has an OS Command Injection via $() Shell Substitution Bypass in sanitizeFFmpegCommand()", "problemTypes": [{"descriptions": [{"cweId": "CWE-78", "lang": "en", "description": "CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}}], "references": [{"name": "https://github.com/WWBN/AVideo/security/advisories/GHSA-pmj8-r2j7-xg6c", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/WWBN/AVideo/security/advisories/GHSA-pmj8-r2j7-xg6c"}, {"name": "https://github.com/WWBN/AVideo/commit/25c8ab90269e3a01fb4cf205b40a373487f022e1", "tags": ["x_refsource_MISC"], "url": "https://github.com/WWBN/AVideo/commit/25c8ab90269e3a01fb4cf205b40a373487f022e1"}], "affected": [{"vendor": "WWBN", "product": "AVideo", "versions": [{"version": "<= 26.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-03-23T14:10:10.157Z"}, "descriptions": [{"lang": "en", "value": "WWBN AVideo is an open source video platform. In versions up to and including 26.0, the `sanitizeFFmpegCommand()` function in `plugin/API/standAlone/functions.php` is designed to prevent OS command injection in ffmpeg commands by stripping dangerous shell metacharacters (`&&`, `;`, `|`, `` ` ``, `<`, `>`). However, it fails to strip `$()` (bash command substitution syntax). Since the sanitized command is executed inside a double-quoted `sh -c` context in `execAsync()`, an attacker who can craft a valid encrypted payload can achieve arbitrary command execution on the standalone encoder server. Commit 25c8ab90269e3a01fb4cf205b40a373487f022e1 contains a patch."}], "source": {"advisory": "GHSA-pmj8-r2j7-xg6c", "discovery": "UNKNOWN"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-03-23T17:59:51.056736Z", "id": "CVE-2026-33482", "options": [{"Exploitation": "poc"}, {"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": "2026-03-23T18:08:31.712Z"}}]}}

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