{"id":"CVE-2026-110305","kind":"vulnerability","aliases":["CVE-2026-110305"],"related":[],"title":"WordPress ACF Extended plugin leaks user password hashes to anonymous visitors","description":"The Advanced Custom Fields: Extended plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 0.9.2.7 via the process. This makes it possible for unauthenticated attackers to extract sensitive data including the WordPress password hash of any user by injecting a {get_user} template tag that is resolved and written as a publicly readable term name. Exploitation requires that an administrator has configured a public [acfe_form] shortcode page with a Term action using a save.name field mapping — a supported and documented configuration.","summary":"The Advanced Custom Fields: Extended plugin for WordPress, in versions up to and including 0.9.2.7, lets an unauthenticated visitor inject a {get_user} template tag into a public form so it is saved as a publicly readable term name. An attacker can read the WordPress password hash of any user, including administrators.","severity":"high","cvss":7.5,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["advanced-custom-fields-extended","package","self-hosted","wordpress"],"not_affected_if":["managed-hosting","no-public-acfe-form","plugin-newer-than-0.9.2.7"],"how_to_check":"- Check the installed version of the Advanced Custom Fields: Extended plugin, and look for `0.9.2.7` or earlier.\n- Look for public pages that use the `[acfe_form]` shortcode with a Term action that maps `save.name`.","fix":"- Advanced Custom Fields: Extended: versions above `0.9.2.7` (the sources do not name the exact fixed version)","status":"open","published_at":"2026-10-30T18:17:20+00:00","first_seen_at":"2026-10-30T18:55:28+00:00","triaged_at":"2026-10-30T18:56:48+00:00","updated_at":"2026-10-30T18:56:48+00:00","category":"package","confidence":0.7,"triage":{"at":"2026-10-30T18:56:48Z","model":"claude-haiku-5-5","output":{"fix":"- Advanced Custom Fields: Extended: versions above `0.9.2.7` (the sources do not name the exact fixed version)","reach":"internet","title":"WordPress ACF Extended plugin leaks user password hashes to anonymous visitors","impact":"high","summary":"The Advanced Custom Fields: Extended plugin for WordPress, in versions up to and including 0.9.2.7, lets an unauthenticated visitor inject a {get_user} template tag into a public form so it is saved as a publicly readable term name. An attacker can read the WordPress password hash of any user, including administrators.","audience":"businesses","category":"package","nicknames":[],"who_cares":["wordpress","advanced-custom-fields-extended","self-hosted"],"confidence":0.7,"fix_status":"unknown","needs_auth":"no","worst_case":"Attacker reads WordPress password hashes of any user, including admins.","analyst_note":"Confirm the fixed plugin version and whether a patch exists; the sources give only the affected range.","how_to_check":"- Check the installed version of the Advanced Custom Fields: Extended plugin, and look for `0.9.2.7` or earlier.\n- Look for public pages that use the `[acfe_form]` shortcode with a Term action that maps `save.name`.\n- unknown","plain_action":"","needs_analyst":true,"not_affected_if":["no-public-acfe-form","plugin-newer-than-0.9.2.7","managed-hosting"],"who_is_affected":"Sites running the Advanced Custom Fields: Extended plugin up to and including 0.9.2.7 where an administrator has published an [acfe_form] page with a Term action mapping save.name. Sites without that public form configuration are not exposed by this path. The sources do not say whether other configurations are affected.","user_interaction":"no","needs_special_setup":"yes","severity_if_unknown":"high"},"cost_usd":0.000749,"input_tokens":4215,"output_tokens":655,"severity_before":"high"},"analyst_status":null,"analyst_note":null,"search":"'-110305':14A,17A '-2026':13A,16A '0.9.2.7':42B,101C 'acf':2A,151C 'action':158C 'administr':79B,146C 'advanc':19B,29B,81C 'advanced-custom-fields-extend':18B 'anonym':10A 'attack':68B,111C 'configur':148C,168C 'custom':20B,30B,82C 'cve':12A,15A 'data':115C 'document':167C 'exploit':142C 'exposur':93C 'extend':3A,22B,32B,84C 'extract':113C 'field':21B,31B,83C,162C 'form':56B,152C 'get':49B,127C 'hash':8A,74B,120C 'host':26B 'includ':41B,78B,100C,116C 'inform':92C 'inject':47B,125C 'leak':5A 'let':43B 'make':106C 'map':163C 'name':66B,141C 'packag':23B 'page':154C 'password':7A,73B,119C 'plugin':4A,33B,85C 'possibl':108C 'process':104C 'public':55B,63B,138C,150C 'read':70B 'readabl':64B,139C 'requir':143C 'resolv':133C 'save':60B 'save.name':161C 'self':25B 'self-host':24B 'sensit':91C,114C 'shortcod':153C 'support':165C 'tag':52B,130C 'templat':51B,129C 'term':65B,140C,157C 'unauthent':45B,110C 'use':159C 'user':6A,50B,77B,123C,128C 'version':37B,96C 'via':102C 'visitor':11A,46B 'vulner':89C 'wordpress':1A,27B,35B,72B,87C,118C 'written':135C","nicknames":[],"mitigations":[],"who_affected":"Sites running the Advanced Custom Fields: Extended plugin up to and including 0.9.2.7 where an administrator has published an [acfe_form] page with a Term action mapping save.name. Sites without that public form configuration are not exposed by this path. The sources do not say whether other configurations are affected.","tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"unknown","audience":"businesses","plain_action":null,"first_public_at":"2026-10-30T18:17:20+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","cvss_by":"security@wordfence.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-110305","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-110305","severity":null,"published_at":"2026-10-30T18:17:20+00:00","modified_at":"2026-10-30T18:33:26+00:00","first_seen_at":"2026-10-30T18:55:28+00:00","fetched_at":"2026-10-30T18:55:28+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"}