{"id":"CVE-2026-115807","kind":"vulnerability","aliases":["CVE-2026-115807"],"related":[],"title":"WordPress User Profile Builder plugin lets authors create Editor-role accounts","description":"The User Profile Builder – Beautiful User Registration Forms, User Profiles & User Role Editor plugin for WordPress is vulnerable to Limited Privilege Escalation in all versions up to, and including, 4.0.3. This is due to the Gutenberg Register block passing the attacker-controlled Assigned Role attribute directly into the `[wppb-register]` shortcode without server-side authorization. The role guard in the form builder only downgrades roles that carry the manage_options or remove_users capability, leaving the Editor role and other privileged non-Administrator roles completely unrestricted. This makes it possible for authenticated attackers with Author-level access and above to create new WordPress accounts bearing the Editor role (or any other role that lacks the two guarded capabilities).","summary":"The User Profile Builder plugin for WordPress up to and including 4.0.3 trusts a client-supplied role attribute in its registration block, so the role check fails to stop privilege escalation. An authenticated Author-level user can create new accounts with the Editor role or other non-administrator privileged roles.","severity":"high","cvss":7.1,"epss":0.00288,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["package","self-hosted","wordpress","wordpress-plugin"],"not_affected_if":["patched-version","plugin-not-installed"],"how_to_check":"- Check the installed version of the 'User Profile Builder' plugin in the WordPress admin under Plugins, or run `wp plugin get profile-builder --field=version` with WP-CLI.\n- Look for use of the Register block or `[wppb-register]` shortcode with an assigned role attribute in pages and posts.","fix":"- Update the User Profile Builder plugin to a version newer than `4.0.3`; the sources do not name the fixed version.","status":"open","published_at":"2026-10-24T05:17:06+00:00","first_seen_at":"2026-10-24T05:46:56+00:00","triaged_at":"2026-10-25T03:31:10+00:00","updated_at":"2026-10-25T12:38:49+00:00","category":"package","confidence":0.8,"triage":{"at":"2026-10-25T03:31:10Z","model":"claude-haiku-5-5","output":{"fix":"- Update the User Profile Builder plugin to a version newer than `4.0.3`; the sources do not name the fixed version.","reach":"internet","title":"WordPress User Profile Builder plugin lets authors create Editor-role accounts","impact":"medium","summary":"The User Profile Builder plugin for WordPress up to and including 4.0.3 trusts a client-supplied role attribute in its registration block, so the role check fails to stop privilege escalation. An authenticated Author-level user can create new accounts with the Editor role or other non-administrator privileged roles.","category":"package","nicknames":[],"who_cares":["wordpress","wordpress-plugin","self-hosted"],"confidence":0.8,"needs_auth":"yes","worst_case":"Attacker gains an Editor-level account on the WordPress site","analyst_note":"Confirm the first patched version of User Profile Builder from the NVD or the vendor changelog, since the sources only say 'up to and including 4.0.3'.","how_to_check":"- Check the installed version of the 'User Profile Builder' plugin in the WordPress admin under Plugins, or run `wp plugin get profile-builder --field=version` with WP-CLI.\n- Look for use of the Register block or `[wppb-register]` shortcode with an assigned role attribute in pages and posts.","needs_analyst":true,"not_affected_if":["plugin-not-installed","patched-version"],"who_is_affected":"Sites running User Profile Builder at version 4.0.3 or earlier where registration forms are in use and Author-level or higher accounts exist that could be used by an attacker. Sites without this plugin, or where the plugin is at a newer version, are not affected. Sites with no Author-level users have a much smaller exposure.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000665,"input_tokens":3477,"output_tokens":634,"severity_before":"high"},"analyst_status":null,"analyst_note":null,"search":"'-115807':15A,18A '-2026':14A,17A '4.0.3':38B,109C 'access':181C 'account':12A,68B,188C 'administr':77B,166C 'assign':123C 'attack':121C,176C 'attacker-control':120C 'attribut':45B,125C 'authent':60B,175C 'author':7A,62B,137C,179C 'author-level':61B,178C 'bear':189C 'beauti':84C 'block':49B,117C 'builder':4A,30B,83C,144C 'capabl':156C,202C 'carri':149C 'check':53B 'client':42B 'client-suppli':41B 'complet':168C 'control':122C 'creat':8A,66B,185C 'cve':13A,16A 'direct':126C 'downgrad':146C 'due':112C 'editor':10A,71B,92C,159C,191C 'editor-rol':9A 'escal':58B,101C 'fail':54B 'form':87C,143C 'guard':140C,201C 'gutenberg':115C 'host':22B 'includ':37B,108C 'lack':198C 'leav':157C 'let':6A 'level':63B,180C 'limit':99C 'make':171C 'manag':151C 'new':67B,186C 'non':76B,165C 'non-administr':75B,164C 'option':152C 'packag':19B 'pass':118C 'plugin':5A,26B,31B,93C 'possibl':173C 'privileg':57B,78B,100C,163C 'profil':3A,29B,82C,89C 'regist':116C,131C 'registr':48B,86C 'remov':154C 'role':11A,44B,52B,72B,79B,91C,124C,139C,147C,160C,167C,192C,196C 'self':21B 'self-host':20B 'server':135C 'server-sid':134C 'shortcod':132C 'side':136C 'stop':56B 'suppli':43B 'trust':39B 'two':200C 'unrestrict':169C 'user':2A,28B,64B,81C,85C,88C,90C,155C 'version':104C 'vulner':97C 'without':133C 'wordpress':1A,23B,25B,33B,95C,187C 'wordpress-plugin':24B 'wppb':130C 'wppb-regist':129C","nicknames":[],"mitigations":[],"who_affected":"Sites running User Profile Builder at version 4.0.3 or earlier where registration forms are in use and Author-level or higher accounts exist that could be used by an attacker. Sites without this plugin, or where the plugin is at a newer version, are not affected. Sites with no Author-level users have a much smaller exposure.","tier":"B","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-24T05:17:06+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N","cvss_by":"security@wordfence.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-115807","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-115807","severity":null,"published_at":"2026-10-24T05:17:06+00:00","modified_at":"2026-10-24T05:17:06+00:00","first_seen_at":"2026-10-24T05:46:56+00:00","fetched_at":"2026-10-24T05:46:56+00:00","note":null},{"source":"epss","external_id":"CVE-2026-115807","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-115807","severity":null,"published_at":null,"modified_at":null,"first_seen_at":"2026-10-25T12:38:49+00:00","fetched_at":"2026-10-25T12:38:49+00:00","note":null}],"documents":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}