{"id":"CVE-2026-39743","kind":"vulnerability","aliases":["CVE-2026-39743"],"related":[],"title":"WCFM Membership WordPress plugin: missing authorization check exposes access controls","description":"Missing Authorization vulnerability in WC Lovers WCFM Membership wc-multivendor-membership allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects WCFM Membership: from n/a through 2.12.0.","summary":"The WCFM Membership plugin for WooCommerce multivendor stores has a missing authorization check, so access control settings can be exploited. The description says it affects versions from n/a through 2.12.0 and gives no details of what an attacker can read or change.","severity":"medium","cvss":5.3,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["package","self-hosted","wcfm","woocommerce","wordpress"],"not_affected_if":["newer-version","plugin-not-installed"],"how_to_check":"- Check the installed version of the WCFM Membership plugin (wc-multivendor-membership) in the WordPress plugins screen or `wp plugin get wc-multivendor-membership --field=version`\n- Compare against the affected range: n/a through `2.12.0`","fix":"- Versions above `2.12.0` are reported by the source as not affected; the exact fixed version is unknown","status":"open","published_at":"2026-11-03T17:18:13+00:00","first_seen_at":"2026-11-03T17:21:57+00:00","triaged_at":"2026-11-03T17:24:24+00:00","updated_at":"2026-11-03T17:24:24+00:00","category":"package","confidence":0.5,"triage":{"at":"2026-11-03T17:24:24Z","model":"claude-haiku-5-5","output":{"fix":"- Versions above `2.12.0` are reported by the source as not affected; the exact fixed version is unknown","reach":"internet","title":"WCFM Membership WordPress plugin: missing authorization check exposes access controls","impact":"medium","summary":"The WCFM Membership plugin for WooCommerce multivendor stores has a missing authorization check, so access control settings can be exploited. The description says it affects versions from n/a through 2.12.0 and gives no details of what an attacker can read or change.","audience":"businesses","category":"package","nicknames":[],"who_cares":["wordpress","woocommerce","wcfm","self-hosted"],"confidence":0.5,"fix_status":"unknown","needs_auth":"unknown","worst_case":"unknown; attacker may bypass access controls on membership features","analyst_note":"Check the NVD entry and the WordPress plugin changelog for the fixed version and the exact privilege or endpoint involved.","how_to_check":"- Check the installed version of the WCFM Membership plugin (wc-multivendor-membership) in the WordPress plugins screen or `wp plugin get wc-multivendor-membership --field=version`\n- Compare against the affected range: n/a through `2.12.0`","plain_action":"","needs_analyst":true,"not_affected_if":["plugin-not-installed","newer-version"],"who_is_affected":"Sites running the WCFM Membership plugin (wc-multivendor-membership) at version 2.12.0 or earlier with WooCommerce multivendor membership features in use. Sites without this plugin installed are not affected.","user_interaction":"unknown","needs_special_setup":"unknown","severity_if_unknown":"unknown"},"cost_usd":0.000704,"input_tokens":4119,"output_tokens":584,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-2026':12A,15A '-39743':13A,16A '2.12.0':53B,93C 'access':9A,38B,82C 'affect':48B,87C 'allow':78C 'attack':61B 'author':6A,35B,67C 'chang':65B 'check':7A,36B 'configur':81C 'control':10A,39B,83C 'cve':11A,14A 'descript':45B 'detail':57B 'exploit':43B,79C 'expos':8A 'give':55B 'host':20B 'incorrect':80C 'issu':86C 'levels.this':85C 'lover':71C 'membership':2A,26B,73C,77C,89C 'miss':5A,34B,66C 'multivendor':30B,76C 'n/a':51B,91C 'packag':17B 'plugin':4A,27B 'read':63B 'say':46B 'secur':84C 'self':19B 'self-host':18B 'set':40B 'store':31B 'version':49B 'vulner':68C 'wc':70C,75C 'wc-multivendor-membership':74C 'wcfm':1A,21B,25B,72C,88C 'woocommerc':22B,29B 'wordpress':3A,23B","nicknames":[],"mitigations":[],"who_affected":"Sites running the WCFM Membership plugin (wc-multivendor-membership) at version 2.12.0 or earlier with WooCommerce multivendor membership features in use. Sites without this plugin installed are not affected.","tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"unknown","audience":"businesses","plain_action":null,"pkeys":[],"ptokens":[],"labels":["medium","package","selfhosted","wcfm","woocommerce","wordpress"],"first_public_at":"2026-11-03T17:18:13+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","cvss_by":"audit@patchstack.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-39743","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-39743","severity":null,"published_at":"2026-11-03T17:18:13+00:00","modified_at":"2026-11-03T17:18:13+00:00","first_seen_at":"2026-11-03T17:21:57+00:00","fetched_at":"2026-11-03T17:21:57+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"}