{"id":"CVE-2026-12165","aliases":["EUVD-2026-37586","GHSA-2mpv-c59f-r8f4"],"status":"published","title":"Contest Gallery \u003c= 30.0.2 - Authenticated (Author+) Privilege Escalation via 'RegistryUserRole' Parameter","description":"The Contest Gallery – Upload \u0026 Vote Photos, Media, Sell with PayPal \u0026 Stripe plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 30.0.2 via the `RegistryUserRole` parameter. This is due to the plugin's admin menu being registered at the `edit_posts` capability level — granting Contributor-level users access to the plugin's admin pages and a valid `cg_admin` nonce — while the option-saving handler in `change-options-and-sizes.php` performs no `current_user_can()` capability check beyond `check_admin_referer('cg_admin')`, and the `RegistryUserRole` value is processed only through `sanitize_text_field()` and `htmlentities()` without restriction to an allowlist of permitted role names. This makes it possible for authenticated attackers, with author-level access and above, to overwrite the plugin's stored `RegistryUserRole` option with `administrator`, which the `cg_create_wp_user_from_google_user` function then reads back from the `contest_gal1ery_registry_and_login_options` database table without any allowlist validation and passes directly to `wp_update_user()`, effectively promoting a newly registered Google sign-in account to Administrator.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00396,"percentile":0.34273,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-269"],"published":"2026-06-17T09:30:59Z","modified":"2026-06-17T18:35:53Z","products":[{"vendor":"contest-gallery","product":"contest gallery – upload \u0026 vote photos, media, sell with paypal \u0026 stripe"}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/69b909da-b1b0-4dab-916c-908511f6556f?source=cve"},{"url":"https://plugins.trac.wordpress.org/browser/contest-gallery/tags/30.0.2/v10/v10-admin/options/change-options-and-sizes.php#L1242"},{"url":"https://plugins.trac.wordpress.org/browser/contest-gallery/tags/30.0.2/functions/google/cg-create-wp-user-from-google-user.php#L169"},{"url":"https://plugins.trac.wordpress.org/browser/contest-gallery/tags/30.0.2/v10/v10-admin/options/change-options-and-sizes.php#L16"},{"url":"https://plugins.trac.wordpress.org/browser/contest-gallery/tags/30.0.2/index.php#L407"},{"url":"https://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026old=3571733%40contest-gallery\u0026new=3571733%40contest-gallery\u0026sfp_email=\u0026sfph_mail="},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-12165"},{"url":"https://github.com/advisories/GHSA-2mpv-c59f-r8f4"}],"sources":{"cve":[{"id":"CVE-2026-12165","title":"Contest Gallery \u003c= 30.0.2 - Authenticated (Author+) Privilege Escalation via 'RegistryUserRole' Parameter","description":"The Contest Gallery – Upload \u0026 Vote Photos, Media, Sell with PayPal \u0026 Stripe plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 30.0.2 via the `RegistryUserRole` parameter. This is due to the plugin's admin menu being registered at the `edit_posts` capability level — granting Contributor-level users access to the plugin's admin pages and a valid `cg_admin` nonce — while the option-saving handler in `change-options-and-sizes.php` performs no `current_user_can()` capability check beyond `check_admin_referer('cg_admin')`, and the `RegistryUserRole` value is processed only through `sanitize_text_field()` and `htmlentities()` without restriction to an allowlist of permitted role names. This makes it possible for authenticated attackers, with author-level access and above, to overwrite the plugin's stored `RegistryUserRole` option with `administrator`, which the `cg_create_wp_user_from_google_user` function then reads back from the `contest_gal1ery_registry_and_login_options` database table without any allowlist validation and passes directly to `wp_update_user()`, effectively promoting a newly registered Google sign-in account to Administrator.","status":"published","published":"2026-06-17T09:30:59.218Z","modified":"2026-06-17T10:38:40.424Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-269"],"updated_at":"2026-11-02T14:19:48.461833Z"}],"euvd":[{"id":"EUVD-2026-37586","description":"The Contest Gallery – Upload \u0026 Vote Photos, Media, Sell with PayPal \u0026 Stripe plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 30.0.2 via the `RegistryUserRole` parameter. This is due to the plugin's admin menu being registered at the `edit_posts` capability level — granting Contributor-level users access to the plugin's admin pages and a valid `cg_admin` nonce — while the option-saving handler in `change-options-and-sizes.php` performs no `current_user_can()` capability check beyond `check_admin_referer('cg_admin')`, and the `RegistryUserRole` value is processed only through `sanitize_text_field()` and `htmlentities()` without restriction to an allowlist of permitted role names. This makes it possible for authenticated attackers, with author-level access and above, to overwrite the plugin's stored `RegistryUserRole` option with `administrator`, which the `cg_create_wp_user_from_google_user` function then reads back from the `contest_gal1ery_registry_and_login_options` database table without any allowlist validation and passes directly to `wp_update_user()`, effectively promoting a newly registered Google sign-in account to Administrator.","status":"published","published":"2026-06-17T09:30:59Z","modified":"2026-06-17T10:38:40Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T18:20:39.361111Z"}],"ghsa":[{"id":"GHSA-2mpv-c59f-r8f4","title":"The Contest Gallery – Upload \u0026 Vote Photos, Media, Sell with PayPal \u0026 Stripe plugin for WordPress...","description":"The Contest Gallery – Upload \u0026 Vote Photos, Media, Sell with PayPal \u0026 Stripe plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 30.0.2 via the `RegistryUserRole` parameter. This is due to the plugin's admin menu being registered at the `edit_posts` capability level — granting Contributor-level users access to the plugin's admin pages and a valid `cg_admin` nonce — while the option-saving handler in `change-options-and-sizes.php` performs no `current_user_can()` capability check beyond `check_admin_referer('cg_admin')`, and the `RegistryUserRole` value is processed only through `sanitize_text_field()` and `htmlentities()` without restriction to an allowlist of permitted role names. This makes it possible for authenticated attackers, with author-level access and above, to overwrite the plugin's stored `RegistryUserRole` option with `administrator`, which the `cg_create_wp_user_from_google_user` function then reads back from the `contest_gal1ery_registry_and_login_options` database table without any allowlist validation and passes directly to `wp_update_user()`, effectively promoting a newly registered Google sign-in account to Administrator.","status":"published","published":"2026-06-17T18:35:45Z","modified":"2026-06-17T18:35:53Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-269"],"updated_at":"2026-11-02T15:08:51.221064Z"}],"nvd":[{"id":"CVE-2026-12165","description":"The Contest Gallery – Upload \u0026 Vote Photos, Media, Sell with PayPal \u0026 Stripe plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 30.0.2 via the `RegistryUserRole` parameter. This is due to the plugin's admin menu being registered at the `edit_posts` capability level — granting Contributor-level users access to the plugin's admin pages and a valid `cg_admin` nonce — while the option-saving handler in `change-options-and-sizes.php` performs no `current_user_can()` capability check beyond `check_admin_referer('cg_admin')`, and the `RegistryUserRole` value is processed only through `sanitize_text_field()` and `htmlentities()` without restriction to an allowlist of permitted role names. This makes it possible for authenticated attackers, with author-level access and above, to overwrite the plugin's stored `RegistryUserRole` option with `administrator`, which the `cg_create_wp_user_from_google_user` function then reads back from the `contest_gal1ery_registry_and_login_options` database table without any allowlist validation and passes directly to `wp_update_user()`, effectively promoting a newly registered Google sign-in account to Administrator.","status":"published","published":"2026-06-17T13:19:57.433Z","modified":"2026-06-17T14:44:26.397Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-269"],"updated_at":"2026-11-02T14:12:24.544761Z"}]}}