{"id":"CVE-2026-33767","aliases":["GHSA-fj74-qxj7-r3vc"],"url":"https://o3.security/vulnerability/CVE-2026-33767","summary":"AVideo has SQL Injection via Partial Prepared Statement — videos_id Concatenated Directly into Query","details":"### Summary\n\nIn `objects/like.php`, the `getLike()` method constructs a SQL query using a prepared statement placeholder (`?`) for `users_id` but directly concatenates `$this->videos_id` into the query string without parameterization. An attacker who can control the `videos_id` value (via a crafted request) can inject arbitrary SQL, bypassing the partial prepared-statement protection.\n\n### Details\n\n**File:** `objects/like.php`\n\n**Vulnerable code:**\n```php\n$sql = \"SELECT * FROM likes WHERE users_id = ? AND videos_id = \".$this->videos_id.\" LIMIT 1;\";\n$res = sqlDAL::readSql($sql, \"i\", [$this->users_id]);\n```\n\nThe query mixes a parameterized placeholder for `users_id` with raw string concatenation for `videos_id`. The `$this->videos_id` value originates from user-supplied request input (typically a POST/GET parameter identifying the video being liked/disliked) and is not cast to integer or validated before being embedded in the SQL string.\n\nAll other queries in the same file correctly use `?` placeholders for both columns:\n```php\n// Correct pattern used elsewhere:\n$sql = \"SELECT count(*) as total FROM likes WHERE videos_id = ? AND like = 1\";\n```\n\nThe inconsistency means any attacker who can submit a like/dislike action with a crafted `videos_id` can inject SQL. Since like/dislike actions are typically available to any authenticated user, the attack surface is broad.\n\n### PoC\n\nAn attacker sends a like request with an injected `videos_id`:\n```\nPOST /objects/likeAjax.json.php\nvideos_id=1 UNION SELECT user,password,3,4,5,6,7,8 FROM users-- -\n```\n\nThis causes the backend to execute:\n```sql\nSELECT * FROM likes WHERE users_id = 1 AND videos_id = 1 UNION SELECT user,password,3,4,5,6,7,8 FROM users-- - LIMIT 1;\n```\n\nResult: full database read — user credentials, emails, private content, and any other data accessible to the MySQL user.\n\n### Impact\n\n- **Severity:** High\n- **Authentication required:** Yes (must be logged in to like a video), but all registered users qualify\n- **Impact:** Full database read via UNION-based injection; potential for data modification or deletion depending on DB user privileges\n- **Fix:** Replace the concatenation with a second `?` placeholder and pass `$this->videos_id` as a bound integer parameter","published":"2026-03-27T16:12:36.907Z","modified":"2026-08-12T03:51:46.106327295Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Packagist","name":"wwbn/avideo","fixedVersion":"26.0"}],"fix":{"url":"https://github.com/WWBN/AVideo/commit/0215d3c4f1ee748b8880254967b51784b8ac4080","label":"WWBN/AVideo@0215d3c"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33767.json"},{"type":"ADVISORY","url":"https://github.com/WWBN/AVideo/security/advisories/GHSA-fj74-qxj7-r3vc"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-33767"},{"type":"FIX","url":"https://github.com/WWBN/AVideo/commit/0215d3c4f1ee748b8880254967b51784b8ac4080"},{"type":"PACKAGE","url":"https://github.com/WWBN/AVideo"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:46.106327295Z"}}