{"id":"CVE-2026-33690","aliases":["EUVD-2026-14500","GHSA-8p2x-5cpm-qrqw"],"status":"published","title":"AVideo vulnerable to IP Address Spoofing via Untrusted HTTP Headers in getRealIpAddr()","description":"WWBN AVideo is an open source video platform. In versions up to and including 26.0, the `getRealIpAddr()` function in `objects/functions.php` trusts user-controlled HTTP headers to determine the client's IP address. An attacker can spoof their IP address by sending forged headers, bypassing any IP-based access controls or audit logging. Commit 1a1df6a9377e5cc67d1d0ac8ef571f7abbffbc6c contains a patch.","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00182,"percentile":0.07914,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-348"],"published":"2026-03-23T18:45:25Z","modified":"2026-10-28T02:30:38Z","affected":[{"source":"ghsa","ecosystem":"Packagist","package":"wwbn/avideo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"26.0"}]}]},{"source":"osv","ecosystem":"Packagist","package":"wwbn/avideo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"26.0"}]}],"versions":["10.4","10.8","11","11.1","11.1.1","11.5","11.6","12.4","14.3","14.3.1","14.4","18.0","21.0","22.0","24.0","25.0","26.0"]}],"products":[{"vendor":"wwbn","product":"avideo"}],"references":[{"url":"https://github.com/WWBN/AVideo/security/advisories/GHSA-8p2x-5cpm-qrqw","tags":["x_refsource_CONFIRM","Exploit","Vendor Advisory","advisory","web"]},{"url":"https://github.com/WWBN/AVideo/commit/1a1df6a9377e5cc67d1d0ac8ef571f7abbffbc6c","tags":["x_refsource_MISC","Patch","fix","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-33690","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-8p2x-5cpm-qrqw"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33690.json","tags":["advisory"]},{"url":"https://github.com/WWBN/AVideo","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-33690","title":"AVideo vulnerable to IP Address Spoofing via Untrusted HTTP Headers in getRealIpAddr()","description":"WWBN AVideo is an open source video platform. In versions up to and including 26.0, the `getRealIpAddr()` function in `objects/functions.php` trusts user-controlled HTTP headers to determine the client's IP address. An attacker can spoof their IP address by sending forged headers, bypassing any IP-based access controls or audit logging. Commit 1a1df6a9377e5cc67d1d0ac8ef571f7abbffbc6c contains a patch.","status":"published","published":"2026-03-23T18:45:25.729Z","modified":"2026-03-24T18:36:16.313Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-348"],"updated_at":"2026-11-02T14:20:08.009733Z"}],"euvd":[{"id":"EUVD-2026-14500","description":"WWBN AVideo is an open source video platform. In versions up to and including 26.0, the `getRealIpAddr()` function in `objects/functions.php` trusts user-controlled HTTP headers to determine the client's IP address. An attacker can spoof their IP address by sending forged headers, bypassing any IP-based access controls or audit logging. Commit 1a1df6a9377e5cc67d1d0ac8ef571f7abbffbc6c contains a patch.","status":"published","published":"2026-03-23T18:45:25Z","modified":"2026-03-24T18:36:16Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T19:25:29.933437Z"}],"ghsa":[{"id":"GHSA-8p2x-5cpm-qrqw","title":"AVideo vulnerable to IP Address Spoofing via Untrusted HTTP Headers in getRealIpAddr()","description":"## Summary\n\nThe `getRealIpAddr()` function in `objects/functions.php` trusts user-controlled HTTP headers to determine the client's IP address. \nAn attacker can spoof their IP address by sending forged headers, bypassing any IP-based access controls or audit logging.\n\n## Vulnerable Code\n\nFile: `objects/functions.php`\n```php\n$headers = [\n    'HTTP_X_REAL_IP',      \n    'HTTP_CLIENT_IP',    \n    'HTTP_X_FORWARDED_FOR',\n    'REMOTE_ADDR'\n];\n\nforeach ($headers as $header) {\n    if (!empty($_SERVER[$header])) {\n        $ips = explode(',', $_SERVER[$header]);\n        foreach ($ips as $ipCandidate) {\n            $ipCandidate = trim($ipCandidate);\n            if (filter_var($ipCandidate, FILTER_VALIDATE_IP, \n                           FILTER_FLAG_IPV4)) {\n                return $ipCandidate; \n            }\n        }\n    }\n}\n```\n\n## Attack Scenario\n\n1. Attacker sends request with forged header:\n```\nX-Client-IP: 127.0.0.1\n```\nor\n```\nX-Real-IP: 192.168.1.1\n```\n\n2. `getRealIpAddr()` returns the forged IP\n3. Any IP-based rate limiting, access control, or audit \n   log that relies on this function is bypassed\n\n## Proof of Concept\n```bash\ncurl -H \"X-Client-IP: 127.0.0.1\" \\\n     https://target.com/any_endpoint.php\n```\n\nThe server now believes the request came from localhost.\n\n## Impact\n- Bypass IP-based rate limiting\n- Bypass IP-based access controls\n- Forge audit log entries\n- Potential privilege escalation if localhost is trusted","status":"published","published":"2026-03-25T19:54:42Z","modified":"2026-03-25T19:54:44Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"cwes":["CWE-348"],"updated_at":"2026-11-02T14:39:42.712607Z"}],"nvd":[{"id":"CVE-2026-33690","description":"WWBN AVideo is an open source video platform. In versions up to and including 26.0, the `getRealIpAddr()` function in `objects/functions.php` trusts user-controlled HTTP headers to determine the client's IP address. An attacker can spoof their IP address by sending forged headers, bypassing any IP-based access controls or audit logging. Commit 1a1df6a9377e5cc67d1d0ac8ef571f7abbffbc6c contains a patch.","status":"published","published":"2026-03-23T19:16:42.173Z","modified":"2026-06-17T10:37:55.943Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-348"],"updated_at":"2026-11-02T14:12:10.568062Z"}],"osv":[{"id":"CVE-2026-33690","title":"AVideo vulnerable to IP Address Spoofing via Untrusted HTTP Headers in getRealIpAddr()","description":"WWBN AVideo is an open source video platform. In versions up to and including 26.0, the `getRealIpAddr()` function in `objects/functions.php` trusts user-controlled HTTP headers to determine the client's IP address. An attacker can spoof their IP address by sending forged headers, bypassing any IP-based access controls or audit logging. Commit 1a1df6a9377e5cc67d1d0ac8ef571f7abbffbc6c contains a patch.","status":"published","published":"2026-03-23T18:45:25.729Z","modified":"2026-10-28T02:30:38.025799553Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"cwes":["CWE-348"],"updated_at":"2026-11-02T15:45:01.896044Z"},{"id":"GHSA-8p2x-5cpm-qrqw","title":"AVideo vulnerable to IP Address Spoofing via Untrusted HTTP Headers in getRealIpAddr()","description":"## Summary\n\nThe `getRealIpAddr()` function in `objects/functions.php` trusts user-controlled HTTP headers to determine the client's IP address. \nAn attacker can spoof their IP address by sending forged headers, bypassing any IP-based access controls or audit logging.\n\n## Vulnerable Code\n\nFile: `objects/functions.php`\n```php\n$headers = [\n    'HTTP_X_REAL_IP',      \n    'HTTP_CLIENT_IP',    \n    'HTTP_X_FORWARDED_FOR',\n    'REMOTE_ADDR'\n];\n\nforeach ($headers as $header) {\n    if (!empty($_SERVER[$header])) {\n        $ips = explode(',', $_SERVER[$header]);\n        foreach ($ips as $ipCandidate) {\n            $ipCandidate = trim($ipCandidate);\n            if (filter_var($ipCandidate, FILTER_VALIDATE_IP, \n                           FILTER_FLAG_IPV4)) {\n                return $ipCandidate; \n            }\n        }\n    }\n}\n```\n\n## Attack Scenario\n\n1. Attacker sends request with forged header:\n```\nX-Client-IP: 127.0.0.1\n```\nor\n```\nX-Real-IP: 192.168.1.1\n```\n\n2. `getRealIpAddr()` returns the forged IP\n3. Any IP-based rate limiting, access control, or audit \n   log that relies on this function is bypassed\n\n## Proof of Concept\n```bash\ncurl -H \"X-Client-IP: 127.0.0.1\" \\\n     https://target.com/any_endpoint.php\n```\n\nThe server now believes the request came from localhost.\n\n## Impact\n- Bypass IP-based rate limiting\n- Bypass IP-based access controls\n- Forge audit log entries\n- Potential privilege escalation if localhost is trusted","status":"published","published":"2026-03-25T19:54:42Z","modified":"2026-03-25T20:26:19.70696Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"cwes":["CWE-348"],"updated_at":"2026-11-02T15:46:42.437513Z"}]}}