{"items":[{"id":"NVI-00006324","kind":"vulnerability","title":"CAPTCHA Bypass in WWBN/AVideo via Attacker-Controlled Length Parameter and Missing Token Invalidation on Failure","revision":3,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected.","NVD lastModified does not establish freshness of every associated CPE record."],"lifecycle":"active","identifiers":["GHSA-hg7g-56h5-5pqr","CVE-2026-40935"],"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-21924f6182ff437bfb67b5759463a923"],"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":"CVSS","as_of":"2026-10-26T22:10:00.163Z","value":"5.3 MEDIUM (3.1)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-14f354380b4aa8db51cef0750226e817"},{"kind":"EPSS","as_of":"2026-11-02T12:00:30.000Z","value":"0.218%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.1224. Missing scores are unknown.","source_id":"sr-21924f6182ff437bfb67b5759463a923"}],"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-b05c31f9b622c0eafe3d73527e22e196","url":"https://github.com/advisories/GHSA-hg7g-56h5-5pqr","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-hg7g-56h5-5pqr","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:20.429Z"},{"id":"sr-14f354380b4aa8db51cef0750226e817","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-40935","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-40935","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-01T07:23:52.242Z"},{"id":"sr-21924f6182ff437bfb67b5759463a923","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-2026-40935","publisher":"FIRST EPSS","observed_at":"2026-11-02T20:15:58.852Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-b05c31f9b622c0eafe3d73527e22e196"],"technology":"wwbn/avideo","known_exclusions":[],"conditions_summary":"## Summary\n\n`objects/getCaptcha.php` accepts the CAPTCHA length (`ql`) directly from the query string with no clamping or sanitization, letting any unauthenticated client force the server to generate a 1-character CAPTCHA word. Combined with a case-insensitive `strcasecmp` comparison over a ~33-character alphabet and the fact that failed validations do NOT consume the stored session token, an attacker can trivially brute-force the CAPTCHA on any endpoint that relies on `Captcha::validation()` (user registration, password recovery, contact form, etc.) in at most ~33 requests per session.\n\n## Details\n\nThree cooperating flaws in `objects/getCaptcha.php` and `objects/captcha.php` reduce CAPTCHA protection to a deterministic bypass.\n\n### 1. External control of CAPTCHA strength (`objects/getCaptcha.php:7`)\n\n```php\n$largura        = empty($_GET['l'])  ? 120 : $_GET['l'];\n$altura         = empty($_GET['a'])  ? 40  : $_GET['a'];\n$tamanho_fonte  = empty($_GET['tf']) ? 18  : $_GET['tf'];\n$quantidade_letras = empty($_GET['ql']) ? 5 : $_GET['ql']; // attacker-controlled\n\n$capcha = new Captcha($largura, $altura, $tamanho_fonte, $quantidade_letras);\n$capcha->getCaptchaImage();\n```\n\nThere is no mi","public_affected_ranges":["ECOSYSTEM: introduced 0; last_affected 29.0"]}],"null_published_at":"2026-11-07T14:01:58.738Z","source_updated_at":"2026-05-05T16:11:34.023Z","source_disclosed_at":"2026-04-14T23:13:21.000Z","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":"2026-10-31T21:42:20.429Z"},{"id":"NVI-00006324","kind":"vulnerability","title":"CAPTCHA Bypass in WWBN/AVideo via Attacker-Controlled Length Parameter and Missing Token Invalidation on Failure","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected.","NVD lastModified does not establish freshness of every associated CPE record."],"lifecycle":"active","identifiers":["GHSA-hg7g-56h5-5pqr","CVE-2026-40935"],"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-14f354380b4aa8db51cef0750226e817"],"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":"CVSS","as_of":"2026-10-26T22:10:00.163Z","value":"5.3 MEDIUM (3.1)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-14f354380b4aa8db51cef0750226e817"}],"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-b05c31f9b622c0eafe3d73527e22e196","url":"https://github.com/advisories/GHSA-hg7g-56h5-5pqr","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-hg7g-56h5-5pqr","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:20.429Z"},{"id":"sr-14f354380b4aa8db51cef0750226e817","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-40935","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-40935","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-01T07:23:52.242Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-b05c31f9b622c0eafe3d73527e22e196"],"technology":"wwbn/avideo","known_exclusions":[],"conditions_summary":"## Summary\n\n`objects/getCaptcha.php` accepts the CAPTCHA length (`ql`) directly from the query string with no clamping or sanitization, letting any unauthenticated client force the server to generate a 1-character CAPTCHA word. Combined with a case-insensitive `strcasecmp` comparison over a ~33-character alphabet and the fact that failed validations do NOT consume the stored session token, an attacker can trivially brute-force the CAPTCHA on any endpoint that relies on `Captcha::validation()` (user registration, password recovery, contact form, etc.) in at most ~33 requests per session.\n\n## Details\n\nThree cooperating flaws in `objects/getCaptcha.php` and `objects/captcha.php` reduce CAPTCHA protection to a deterministic bypass.\n\n### 1. External control of CAPTCHA strength (`objects/getCaptcha.php:7`)\n\n```php\n$largura        = empty($_GET['l'])  ? 120 : $_GET['l'];\n$altura         = empty($_GET['a'])  ? 40  : $_GET['a'];\n$tamanho_fonte  = empty($_GET['tf']) ? 18  : $_GET['tf'];\n$quantidade_letras = empty($_GET['ql']) ? 5 : $_GET['ql']; // attacker-controlled\n\n$capcha = new Captcha($largura, $altura, $tamanho_fonte, $quantidade_letras);\n$capcha->getCaptchaImage();\n```\n\nThere is no mi","public_affected_ranges":["ECOSYSTEM: introduced 0; last_affected 29.0"]}],"null_published_at":"2026-11-01T14:34:07.531Z","source_updated_at":"2026-05-05T16:11:34.023Z","source_disclosed_at":"2026-04-14T23:13:21.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-10-31T21:42:20.429Z"},{"id":"NVI-00006324","kind":"vulnerability","title":"CAPTCHA Bypass in WWBN/AVideo via Attacker-Controlled Length Parameter and Missing Token Invalidation on Failure","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-hg7g-56h5-5pqr","CVE-2026-40935"],"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-b05c31f9b622c0eafe3d73527e22e196"],"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-b05c31f9b622c0eafe3d73527e22e196","url":"https://github.com/advisories/GHSA-hg7g-56h5-5pqr","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-hg7g-56h5-5pqr","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:20.429Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-b05c31f9b622c0eafe3d73527e22e196"],"technology":"wwbn/avideo","known_exclusions":[],"conditions_summary":"## Summary\n\n`objects/getCaptcha.php` accepts the CAPTCHA length (`ql`) directly from the query string with no clamping or sanitization, letting any unauthenticated client force the server to generate a 1-character CAPTCHA word. Combined with a case-insensitive `strcasecmp` comparison over a ~33-character alphabet and the fact that failed validations do NOT consume the stored session token, an attacker can trivially brute-force the CAPTCHA on any endpoint that relies on `Captcha::validation()` (user registration, password recovery, contact form, etc.) in at most ~33 requests per session.\n\n## Details\n\nThree cooperating flaws in `objects/getCaptcha.php` and `objects/captcha.php` reduce CAPTCHA protection to a deterministic bypass.\n\n### 1. External control of CAPTCHA strength (`objects/getCaptcha.php:7`)\n\n```php\n$largura        = empty($_GET['l'])  ? 120 : $_GET['l'];\n$altura         = empty($_GET['a'])  ? 40  : $_GET['a'];\n$tamanho_fonte  = empty($_GET['tf']) ? 18  : $_GET['tf'];\n$quantidade_letras = empty($_GET['ql']) ? 5 : $_GET['ql']; // attacker-controlled\n\n$capcha = new Captcha($largura, $altura, $tamanho_fonte, $quantidade_letras);\n$capcha->getCaptchaImage();\n```\n\nThere is no mi","public_affected_ranges":["ECOSYSTEM: introduced 0; last_affected 29.0"]}],"null_published_at":"2026-10-31T22:13:10.050Z","source_updated_at":"2026-05-05T16:11:34.023Z","source_disclosed_at":"2026-04-14T23:13:21.000Z","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":"2026-10-31T21:42:20.429Z"}],"next_cursor":null,"snapshot_revision":"42594"}