{"items":[{"id":"NVI-00005498","kind":"vulnerability","title":"AVideo has an OS Command Injection via $() Shell Substitution Bypass in sanitizeFFmpegCommand()","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-pmj8-r2j7-xg6c","CVE-2026-33482"],"plain_summary":"OSV carries this publisher advisory for wwbn/avideo. This is an aggregated source copy; consult the original publisher and compare update dates.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-d5c217d46006b4ca7504c4e6a60f6eb6"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"4.276%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.91099. Missing scores are unknown.","source_id":"sr-d5c217d46006b4ca7504c4e6a60f6eb6"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-9250ce3d976a6b888573c404cad30e01","url":"https://github.com/advisories/GHSA-pmj8-r2j7-xg6c","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-pmj8-r2j7-xg6c","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:30.993Z"},{"id":"sr-d5c217d46006b4ca7504c4e6a60f6eb6","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-33482","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:15.377Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-9250ce3d976a6b888573c404cad30e01"],"technology":"wwbn/avideo","known_exclusions":[],"conditions_summary":"## Summary\n\nThe `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.\n\n## Details\n\n**Vulnerable sanitization function** (`plugin/API/standAlone/functions.php:59-82`):\n\n```php\nfunction sanitizeFFmpegCommand($command)\n{\n    $allowedPrefixes = ['ffmpeg', '/usr/bin/ffmpeg', '/bin/ffmpeg'];\n    \n    // Remove dangerous characters\n    $command = str_replace('&&', '', $command);\n    $command = preg_replace('/\\s*&?>.*(?:2>&1)?/', '', $command);\n    $command = preg_replace('/[;|`]/', '', $command);  // Missing: $ ( ) \\n\n    \n    // Ensure it starts with an allowed prefix\n    foreach ($allowedPrefixes as $prefix) {\n        if (strpos(trim($command), $prefix) === 0) {\n            return $command;\n        }\n    }\n    return '';\n}\n```\n\nThe cha","public_affected_ranges":["ECOSYSTEM: introduced 0; last_affected 26.0"]}],"null_published_at":"2026-11-08T01:52:04.812Z","source_updated_at":"2026-03-25T19:48:40.506Z","source_disclosed_at":"2026-03-20T20:46:39.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-10-31T21:42:30.993Z"},{"id":"NVI-00005498","kind":"vulnerability","title":"AVideo has an OS Command Injection via $() Shell Substitution Bypass in sanitizeFFmpegCommand()","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-pmj8-r2j7-xg6c","CVE-2026-33482"],"plain_summary":"OSV carries this publisher advisory for wwbn/avideo. This is an aggregated source copy; consult the original publisher and compare update dates.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-9250ce3d976a6b888573c404cad30e01"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-9250ce3d976a6b888573c404cad30e01","url":"https://github.com/advisories/GHSA-pmj8-r2j7-xg6c","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-pmj8-r2j7-xg6c","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:30.993Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-9250ce3d976a6b888573c404cad30e01"],"technology":"wwbn/avideo","known_exclusions":[],"conditions_summary":"## Summary\n\nThe `sanitizeFFmpegCommand()` function in `plugin/API/standAlone/functions.php` is designed to prevent OS command injection in ffmpeg commands by stripping dangerous shell metacharacters (`&&`, `;`, `|`, `` ` ``, ``). However, it fails to strip `$()` (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.\n\n## Details\n\n**Vulnerable sanitization function** (`plugin/API/standAlone/functions.php:59-82`):\n\n```php\nfunction sanitizeFFmpegCommand($command)\n{\n    $allowedPrefixes = ['ffmpeg', '/usr/bin/ffmpeg', '/bin/ffmpeg'];\n    \n    // Remove dangerous characters\n    $command = str_replace('&&', '', $command);\n    $command = preg_replace('/\\s*&?>.*(?:2>&1)?/', '', $command);\n    $command = preg_replace('/[;|`]/', '', $command);  // Missing: $ ( ) \\n\n    \n    // Ensure it starts with an allowed prefix\n    foreach ($allowedPrefixes as $prefix) {\n        if (strpos(trim($command), $prefix) === 0) {\n            return $command;\n        }\n    }\n    return '';\n}\n```\n\nThe cha","public_affected_ranges":["ECOSYSTEM: introduced 0; last_affected 26.0"]}],"null_published_at":"2026-10-31T22:13:01.467Z","source_updated_at":"2026-03-25T19:48:40.506Z","source_disclosed_at":"2026-03-20T20:46:39.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-10-31T21:42:30.993Z"}],"next_cursor":null,"snapshot_revision":"42594"}