{"id":"CVE-2026-97190","kind":"vulnerability","aliases":["CVE-2026-97190"],"related":[],"title":"Advanced Custom Fields WordPress plugin: contributors can edit posts they cannot touch","description":"The Advanced Custom Fields (ACF®) WordPress plugin before 6.8.11 does not verify that a user is allowed to edit the target object before writing to it during bidirectional relationship synchronization, allowing users with contributor-level access and above to add or remove a reference to their own object on arbitrary posts, users, or terms they cannot otherwise edit.","summary":"The Advanced Custom Fields plugin for WordPress skips an authorization check during bidirectional relationship sync. A contributor-level user can add or remove references to their own content on posts, users, or terms they are not allowed to edit.","severity":"medium","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["advanced-custom-fields","package","self-hosted","wordpress"],"not_affected_if":["no-bidirectional-relationships","no-contributor-users","plugin-version-6.8.11-or-later"],"how_to_check":"- Check the installed ACF plugin version in the WordPress admin under Plugins; compare it with `6.8.11`.\n- Look for ACF relationship or bidirectional fields in use on the site.","fix":"- Advanced Custom Fields (WordPress plugin): move to `6.8.11` or later, per the description (fixed before this version).","status":"open","published_at":"2026-11-07T06:16:59+00:00","first_seen_at":"2026-11-07T06:46:04+00:00","triaged_at":"2026-11-07T06:48:13+00:00","updated_at":"2026-11-07T06:48:13+00:00","category":"package","confidence":0.6,"triage":{"at":"2026-11-07T06:48:13Z","model":"claude-haiku-5-5","output":{"fix":"- Advanced Custom Fields (WordPress plugin): move to `6.8.11` or later, per the description (fixed before this version).","reach":"internet","title":"Advanced Custom Fields WordPress plugin: contributors can edit posts they cannot touch","impact":"low","summary":"The Advanced Custom Fields plugin for WordPress skips an authorization check during bidirectional relationship sync. A contributor-level user can add or remove references to their own content on posts, users, or terms they are not allowed to edit.","audience":"businesses","category":"package","nicknames":[],"who_cares":["wordpress","advanced-custom-fields","self-hosted"],"confidence":0.6,"fix_status":"available","needs_auth":"yes","worst_case":"Authenticated contributors alter content relationships they should not control.","analyst_note":"","how_to_check":"- Check the installed ACF plugin version in the WordPress admin under Plugins; compare it with `6.8.11`.\n- Look for ACF relationship or bidirectional fields in use on the site.","plain_action":"","needs_analyst":false,"not_affected_if":["plugin-version-6.8.11-or-later","no-bidirectional-relationships","no-contributor-users"],"who_is_affected":"Sites running the Advanced Custom Fields WordPress plugin before 6.8.11 that use bidirectional relationship fields and have contributor-level or higher users. Sites on the fixed version or without bidirectional relationship fields are likely not affected. Sources do not give more detail on exact conditions.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000709,"input_tokens":4246,"output_tokens":569,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-2026':14A,17A '-97190':15A,18A '6.8.11':76C 'access':104C 'acf':72C 'add':49B,108C 'advanc':1A,20B,29B,69C 'advanced-custom-field':19B 'allow':65B,84C,98C 'arbitrari':118C 'author':37B 'bidirect':40B,95C 'cannot':11A,124C 'check':38B 'content':56B 'contributor':6A,45B,102C 'contributor-level':44B,101C 'custom':2A,21B,30B,70C 'cve':13A,16A 'edit':8A,67B,86C,126C 'field':3A,22B,31B,71C 'host':26B 'level':46B,103C 'object':89C,116C 'otherwis':125C 'packag':23B 'plugin':5A,32B,74C 'post':9A,58B,119C 'refer':52B,112C 'relationship':41B,96C 'remov':51B,110C 'self':25B 'self-host':24B 'skip':35B 'sync':42B 'synchron':97C 'target':88C 'term':61B,122C 'touch':12A 'user':47B,59B,82C,99C,120C 'verifi':79C 'wordpress':4A,27B,34B,73C 'write':91C","nicknames":[],"mitigations":[],"who_affected":"Sites running the Advanced Custom Fields WordPress plugin before 6.8.11 that use bidirectional relationship fields and have contributor-level or higher users. Sites on the fixed version or without bidirectional relationship fields are likely not affected. Sources do not give more detail on exact conditions.","tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"available","audience":"businesses","plain_action":null,"pkeys":[],"ptokens":[],"labels":["advancedcustomfields","medium","package","selfhosted","wordpress"],"campaign_type":null,"search_a":"'-2026':14A,17A '-97190':15A,18A 'advanc':1A 'cannot':11A 'contributor':6A 'custom':2A 'cve':13A,16A 'edit':8A 'field':3A 'plugin':5A 'post':9A 'touch':12A 'wordpress':4A","search_b":"'add':49B 'advanc':20B,29B 'advanced-custom-field':19B 'allow':65B 'author':37B 'bidirect':40B 'check':38B 'content':56B 'contributor':45B 'contributor-level':44B 'custom':21B,30B 'edit':67B 'field':22B,31B 'host':26B 'level':46B 'packag':23B 'plugin':32B 'post':58B 'refer':52B 'relationship':41B 'remov':51B 'self':25B 'self-host':24B 'skip':35B 'sync':42B 'term':61B 'user':47B,59B 'wordpress':27B,34B","search_c":"'6.8.11':76C 'access':104C 'acf':72C 'add':108C 'advanc':69C 'allow':84C,98C 'arbitrari':118C 'bidirect':95C 'cannot':124C 'contributor':102C 'contributor-level':101C 'custom':70C 'edit':86C,126C 'field':71C 'level':103C 'object':89C,116C 'otherwis':125C 'plugin':74C 'post':119C 'refer':112C 'relationship':96C 'remov':110C 'synchron':97C 'target':88C 'term':122C 'user':82C,99C,120C 'verifi':79C 'wordpress':73C 'write':91C","first_public_at":"2026-11-07T06:16:59+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-97190","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-97190","severity":null,"published_at":"2026-11-07T06:16:59+00:00","modified_at":"2026-11-07T06:16:59+00:00","first_seen_at":"2026-11-07T06:46:04+00:00","fetched_at":"2026-11-07T06:46:04+00:00","note":null}],"documents":[],"exploit_sources":[],"notice":"Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai"}