{"id":"CVE-2026-123657","kind":"vulnerability","aliases":["CVE-2026-123657"],"related":[],"title":"ProfilePress WordPress plugin: unauthenticated users can join deactivated membership plans","description":"The ProfilePress  WordPress plugin before 4.17.6 does not reject negative membership plan identifiers before checking whether a plan is active, allowing unauthenticated visitors to sign up for membership plans an administrator has deactivated and receive the role attached to them.","summary":"The ProfilePress WordPress plugin before 4.17.6 does not reject negative membership plan identifiers before checking whether a plan is active. An unauthenticated visitor can therefore sign up for a plan an administrator has deactivated and receive the role attached to it.","severity":"medium","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["membership-sites","other","profilepress","wordpress"],"not_affected_if":["no-membership-plans","plugin-updated"],"how_to_check":"- Check the installed ProfilePress version in the WordPress plugins list or the plugin's main file header; versions before `4.17.6` are listed in the description as affected.\n- Review membership plans for any deactivated plan that still grants a role.","fix":"- ProfilePress `4.17.6` or later (the sources name `4.17.6` as the first fixed version).","status":"open","published_at":"2026-11-11T06:17:17+00:00","first_seen_at":"2026-11-11T06:25:43+00:00","triaged_at":"2026-11-11T06:27:23+00:00","updated_at":"2026-11-11T06:27:23+00:00","category":"other","confidence":0.6,"triage":{"at":"2026-11-11T06:27:23Z","model":"claude-haiku-5-5","output":{"fix":"- ProfilePress `4.17.6` or later (the sources name `4.17.6` as the first fixed version).","reach":"internet","title":"ProfilePress WordPress plugin: unauthenticated users can join deactivated membership plans","impact":"medium","summary":"The ProfilePress WordPress plugin before 4.17.6 does not reject negative membership plan identifiers before checking whether a plan is active. An unauthenticated visitor can therefore sign up for a plan an administrator has deactivated and receive the role attached to it.","audience":"businesses","category":"other","nicknames":[],"who_cares":["wordpress","profilepress","membership-sites"],"confidence":0.6,"fix_status":"available","needs_auth":"no","worst_case":"Unauthenticated visitors gain roles from deactivated membership plans.","analyst_note":"","how_to_check":"- Check the installed ProfilePress version in the WordPress plugins list or the plugin's main file header; versions before `4.17.6` are listed in the description as affected.\n- Review membership plans for any deactivated plan that still grants a role.","plain_action":"","product_name":"","needs_analyst":false,"not_affected_if":["plugin-updated","no-membership-plans"],"who_is_affected":"Sites running the ProfilePress WordPress plugin before 4.17.6 that use membership plans with attached roles. Sites without ProfilePress, or with it at 4.17.6 or later, are not affected.","user_interaction":"no","product_ecosystem":"","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000722,"input_tokens":4536,"output_tokens":536,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-123657':13A,16A '-2026':12A,15A '4.17.6':28B,67C 'activ':42B,81C 'administr':54B,92C 'allow':82C 'attach':61B,99C 'check':37B,76C 'cve':11A,14A 'deactiv':8A,56B,94C 'identifi':35B,74C 'join':7A 'membership':9A,18B,33B,72C,89C 'membership-sit':17B 'negat':32B,71C 'plan':10A,34B,40B,52B,73C,79C,90C 'plugin':3A,26B,65C 'profilepress':1A,21B,24B,63C 'receiv':58B,96C 'reject':31B,70C 'role':60B,98C 'sign':48B,86C 'site':19B 'therefor':47B 'unauthent':4A,44B,83C 'user':5A 'visitor':45B,84C 'whether':38B,77C 'wordpress':2A,22B,25B,64C","nicknames":[],"mitigations":[],"who_affected":"Sites running the ProfilePress WordPress plugin before 4.17.6 that use membership plans with attached roles. Sites without ProfilePress, or with it at 4.17.6 or later, are not affected.","tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"available","audience":"businesses","plain_action":null,"pkeys":[],"ptokens":[],"labels":["medium","membershipsites","other","profilepress","wordpress"],"campaign_type":null,"search_a":"'-123657':13A,16A '-2026':12A,15A 'cve':11A,14A 'deactiv':8A 'join':7A 'membership':9A 'plan':10A 'plugin':3A 'profilepress':1A 'unauthent':4A 'user':5A 'wordpress':2A","search_b":"'4.17.6':28B 'activ':42B 'administr':54B 'attach':61B 'check':37B 'deactiv':56B 'identifi':35B 'membership':18B,33B 'membership-sit':17B 'negat':32B 'plan':34B,40B,52B 'plugin':26B 'profilepress':21B,24B 'receiv':58B 'reject':31B 'role':60B 'sign':48B 'site':19B 'therefor':47B 'unauthent':44B 'visitor':45B 'whether':38B 'wordpress':22B,25B","search_c":"'4.17.6':67C 'activ':81C 'administr':92C 'allow':82C 'attach':99C 'check':76C 'deactiv':94C 'identifi':74C 'membership':72C,89C 'negat':71C 'plan':73C,79C,90C 'plugin':65C 'profilepress':63C 'receiv':96C 'reject':70C 'role':98C 'sign':86C 'unauthent':83C 'visitor':84C 'whether':77C 'wordpress':64C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-11T06:17:17+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-123657","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-123657","severity":null,"published_at":"2026-11-11T06:17:17+00:00","modified_at":"2026-11-11T06:17:17+00:00","first_seen_at":"2026-11-11T06:25:43+00:00","fetched_at":"2026-11-11T06:25:43+00:00","note":null}],"documents":[],"disclosures":[],"exploit_sources":[],"notice":"Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai"}