{"id":"CVE-2026-12165","state":"PUBLISHED","title":"Contest Gallery <= 30.0.2 - Authenticated (Author+) Privilege Escalation via 'RegistryUserRole' Parameter","description":"The Contest Gallery – Upload & Vote Photos, Media, Sell with PayPal & 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.","publishedAt":"2026-06-17T09:30:59.218Z","updatedAt":"2026-06-17T10:38:40.424Z","severity":{"score":8.8,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","source":"Wordfence"},"assigner":"Wordfence","products":["contest-gallery Contest Gallery – Upload & Vote Photos, Media, Sell with PayPal & Stripe"],"affected":[{"vendor":"contest-gallery","product":"Contest Gallery – Upload & Vote Photos, Media, Sell with PayPal & Stripe","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"30.0.2","versionType":"semver"}]}],"references":["https://www.wordfence.com/threat-intel/vulnerabilities/id/69b909da-b1b0-4dab-916c-908511f6556f?source=cve","https://plugins.trac.wordpress.org/browser/contest-gallery/tags/30.0.2/v10/v10-admin/options/change-options-and-sizes.php#L1242","https://plugins.trac.wordpress.org/browser/contest-gallery/tags/30.0.2/functions/google/cg-create-wp-user-from-google-user.php#L169","https://plugins.trac.wordpress.org/browser/contest-gallery/tags/30.0.2/v10/v10-admin/options/change-options-and-sizes.php#L16","https://plugins.trac.wordpress.org/browser/contest-gallery/tags/30.0.2/index.php#L407","https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3571733%40contest-gallery&new=3571733%40contest-gallery&sfp_email=&sfph_mail="],"weaknesses":["CWE-269"],"ingestedAt":"2026-10-29T20:10:52.580Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/12xxx/CVE-2026-12165.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-12165","state":"PUBLISHED","datePublished":"2026-06-17T09:30:59.218Z","dateUpdated":"2026-06-17T10:38:40.424Z","assignerShortName":"Wordfence","assignerOrgId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","dateReserved":"2026-06-12T19:34:12.938Z"},"containers":{"cna":{"title":"Contest Gallery <= 30.0.2 - Authenticated (Author+) Privilege Escalation via 'RegistryUserRole' Parameter","descriptions":[{"lang":"en","value":"The Contest Gallery – Upload & Vote Photos, Media, Sell with PayPal & 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."}],"affected":[{"vendor":"contest-gallery","product":"Contest Gallery – Upload & Vote Photos, Media, Sell with PayPal & Stripe","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"30.0.2","versionType":"semver"}]}],"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=&sfph_mail=&reponame=&old=3571733%40contest-gallery&new=3571733%40contest-gallery&sfp_email=&sfph_mail="}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":8.8,"baseSeverity":"HIGH"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-269","lang":"en","description":"CWE-269 Improper Privilege Management","type":"CWE"}]}],"providerMetadata":{"shortName":"Wordfence","orgId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","dateUpdated":"2026-06-17T09:30:59.218Z"},"credits":[{"lang":"en","type":"finder","value":"Chloe Chamberland"},{"lang":"en","type":"finder","value":"PRISM"}],"timeline":[{"time":"2026-06-12T19:49:28.000Z","lang":"en","value":"Vendor Notified"},{"time":"2026-06-16T20:57:12.000Z","lang":"en","value":"Disclosed"}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-06-17T10:38:33.394545Z","id":"CVE-2026-12165","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-06-17T10:38:40.424Z"}}]}}}