{"id":"CVE-2026-123711","kind":"vulnerability","aliases":["CVE-2026-123711"],"related":[],"title":"WPCOM Member WordPress plugin: brute-forced WeChat login codes grant account takeover","description":"The WPCOM Member WordPress plugin before 1.8.3 does not limit or bind attempts to verify WeChat login codes, allowing unauthenticated attackers to brute-force a code issued to another user and log in as that user, including administrators, when WeChat official-account keyword login is enabled.","summary":"The WPCOM Member WordPress plugin before 1.8.3 does not limit or bind attempts to verify WeChat login codes. An unauthenticated attacker can brute-force a login code issued to another user and log in as that user, including administrators, when WeChat official-account keyword login is enabled.","severity":"high","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[{"name":"WPCOM Member","fixed":[],"affected":"","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["package","self-hosted","wechat-login","wordpress","wpcom-member"],"not_affected_if":["plugin-version-1.8.3-or-later","wechat-login-disabled"],"how_to_check":"- Check the installed WPCOM Member plugin version in the WordPress admin Plugins screen; versions below `1.8.3` are in the affected range.\n- Check whether WeChat official-account keyword login is enabled in the plugin settings.","fix":"- WPCOM Member plugin: move to `1.8.3` or later.","status":"open","published_at":"2026-11-13T06:16:53+00:00","first_seen_at":"2026-11-13T06:42:16+00:00","triaged_at":"2026-11-13T06:42:27+00:00","updated_at":"2026-11-13T06:42:27+00:00","category":"package","confidence":0.6,"triage":{"at":"2026-11-13T06:42:27Z","model":"claude-haiku-5-5","output":{"fix":"- WPCOM Member plugin: move to `1.8.3` or later.","reach":"internet","title":"WPCOM Member WordPress plugin: brute-forced WeChat login codes grant account takeover","impact":"high","summary":"The WPCOM Member WordPress plugin before 1.8.3 does not limit or bind attempts to verify WeChat login codes. An unauthenticated attacker can brute-force a login code issued to another user and log in as that user, including administrators, when WeChat official-account keyword login is enabled.","audience":"businesses","category":"package","nicknames":[],"who_cares":["wordpress","wpcom-member","wechat-login","self-hosted"],"confidence":0.6,"fix_status":"available","needs_auth":"no","worst_case":"Attacker logs in as any user, including administrators, and takes over the site.","analyst_note":"","how_to_check":"- Check the installed WPCOM Member plugin version in the WordPress admin Plugins screen; versions below `1.8.3` are in the affected range.\n- Check whether WeChat official-account keyword login is enabled in the plugin settings.","plain_action":"","product_name":"WPCOM Member","needs_analyst":false,"not_affected_if":["plugin-version-1.8.3-or-later","wechat-login-disabled"],"who_is_affected":"Sites running the WPCOM Member WordPress plugin before 1.8.3 with WeChat official-account keyword login enabled are exposed. The flaw is reachable without an account, so any site on the internet with that feature on is in scope; sites without the plugin or without that login feature can skip it.","user_interaction":"no","product_ecosystem":"vendor","needs_special_setup":"yes","severity_if_unknown":"high"},"cost_usd":0.000757,"input_tokens":4550,"output_tokens":603,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-123711':16A,19A '-2026':15A,18A '1.8.3':39B,88C 'account':12A,77B,125C 'administr':72B,120C 'allow':100C 'anoth':63B,111C 'attack':53B,102C 'attempt':45B,94C 'bind':44B,93C 'brute':6A,56B,105C 'brute-forc':5A,55B,104C 'code':10A,50B,60B,99C,108C 'cve':14A,17A 'enabl':81B,129C 'forc':7A,57B,106C 'grant':11A 'host':25B 'includ':71B,119C 'issu':61B,109C 'keyword':78B,126C 'limit':42B,91C 'log':66B,114C 'login':9A,28B,49B,59B,79B,98C,127C 'member':2A,21A,32B,35B,84C 'offici':76B,124C 'official-account':75B,123C 'packag':22B 'plugin':4A,37B,86C 'self':24B 'self-host':23B 'takeov':13A 'unauthent':52B,101C 'user':64B,70B,112C,118C 'verifi':47B,96C 'wechat':8A,27B,48B,74B,97C,122C 'wechat-login':26B 'wordpress':3A,29B,36B,85C 'wpcom':1A,20A,31B,34B,83C 'wpcom-memb':30B","nicknames":[],"mitigations":[],"who_affected":"Sites running the WPCOM Member WordPress plugin before 1.8.3 with WeChat official-account keyword login enabled are exposed. The flaw is reachable without an account, so any site on the internet with that feature on is in scope; sites without the plugin or without that login feature can skip it.","tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"available","audience":"businesses","plain_action":null,"pkeys":["member","wpcommember"],"ptokens":["member","wpcom"],"labels":["high","package","selfhosted","vendor","wechatlogin","wordpress","wpcommember"],"campaign_type":null,"search_a":"'-123711':16A,19A '-2026':15A,18A 'account':12A 'brute':6A 'brute-forc':5A 'code':10A 'cve':14A,17A 'forc':7A 'grant':11A 'login':9A 'member':2A,21A 'plugin':4A 'takeov':13A 'wechat':8A 'wordpress':3A 'wpcom':1A,20A","search_b":"'1.8.3':39B 'account':77B 'administr':72B 'anoth':63B 'attack':53B 'attempt':45B 'bind':44B 'brute':56B 'brute-forc':55B 'code':50B,60B 'enabl':81B 'forc':57B 'host':25B 'includ':71B 'issu':61B 'keyword':78B 'limit':42B 'log':66B 'login':28B,49B,59B,79B 'member':32B,35B 'offici':76B 'official-account':75B 'packag':22B 'plugin':37B 'self':24B 'self-host':23B 'unauthent':52B 'user':64B,70B 'verifi':47B 'wechat':27B,48B,74B 'wechat-login':26B 'wordpress':29B,36B 'wpcom':31B,34B 'wpcom-memb':30B","search_c":"'1.8.3':88C 'account':125C 'administr':120C 'allow':100C 'anoth':111C 'attack':102C 'attempt':94C 'bind':93C 'brute':105C 'brute-forc':104C 'code':99C,108C 'enabl':129C 'forc':106C 'includ':119C 'issu':109C 'keyword':126C 'limit':91C 'log':114C 'login':98C,127C 'member':84C 'offici':124C 'official-account':123C 'plugin':86C 'unauthent':101C 'user':112C,118C 'verifi':96C 'wechat':97C,122C 'wordpress':85C 'wpcom':83C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-13T06:16:53+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-123711","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-123711","severity":null,"published_at":"2026-11-13T06:16:53+00:00","modified_at":"2026-11-13T06:16:53+00:00","first_seen_at":"2026-11-13T06:42:16+00:00","fetched_at":"2026-11-13T06:42:16+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"}