{"id":"CVE-2026-111890","kind":"vulnerability","aliases":["CVE-2026-111890"],"related":[],"title":"phpMyFAQ: admins can grant themselves unrestricted rights across all languages","description":"phpMyFAQ from 4.2.0-alpha.2 before 4.2.0-beta contains a privilege escalation vulnerability in UserController::updateUserRights that drops per-right language restrictions when rights are re-granted. Administrators holding USER_EDIT can submit language-scoped rights to the update-rights API, including for themselves, to gain unrestricted FAQ create, edit, and publish access across all languages.","summary":"phpMyFAQ 4.2.0-alpha.2 before 4.2.0-beta drops per-right language restrictions when user rights are re-granted through UserController::updateUserRights. An administrator holding USER_EDIT can submit language-scoped rights to the update-rights API, including for their own account, and gain unrestricted FAQ create, edit and publish access in every language.","severity":"high","cvss":7.0,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["cms","php","phpmyfaq","runtime","self-hosted"],"not_affected_if":["already-on-4.2.0-beta","no-user-edit-holders"],"how_to_check":"- Check the installed phpMyFAQ version in the admin panel or `composer show phpmyfaq/phpmyfaq` and see whether it falls in 4.2.0-alpha.2 up to 4.2.0-beta\n- Review which accounts hold USER_EDIT and whether any of them are language-restricted editors","fix":"- Upgrade phpMyFAQ to `4.2.0-beta` or later\n- Until upgraded, limit USER_EDIT to trusted administrators","status":"open","published_at":"2026-10-17T19:16:30+00:00","first_seen_at":"2026-10-23T21:57:14+00:00","triaged_at":"2026-10-25T03:38:26+00:00","updated_at":"2026-10-25T03:38:26+00:00","category":"runtime","confidence":0.6,"triage":{"at":"2026-10-25T03:38:26Z","model":"claude-haiku-5-5","output":{"fix":"- Upgrade phpMyFAQ to `4.2.0-beta` or later\n- Until upgraded, limit USER_EDIT to trusted administrators","reach":"network","title":"phpMyFAQ: admins can grant themselves unrestricted rights across all languages","impact":"medium","summary":"phpMyFAQ 4.2.0-alpha.2 before 4.2.0-beta drops per-right language restrictions when user rights are re-granted through UserController::updateUserRights. An administrator holding USER_EDIT can submit language-scoped rights to the update-rights API, including for their own account, and gain unrestricted FAQ create, edit and publish access in every language.","category":"runtime","nicknames":[],"who_cares":["phpmyfaq","self-hosted","php","cms"],"confidence":0.6,"needs_auth":"yes","worst_case":"Restricted editor escalates to unrestricted FAQ publishing in all languages","analyst_note":"Check the phpMyFAQ 4.2.0-beta release notes or GitHub advisory for the exact fixed version and any mitigation, since the sources give only the NVD description.","how_to_check":"- Check the installed phpMyFAQ version in the admin panel or `composer show phpmyfaq/phpmyfaq` and see whether it falls in 4.2.0-alpha.2 up to 4.2.0-beta\n- Review which accounts hold USER_EDIT and whether any of them are language-restricted editors","needs_analyst":true,"not_affected_if":["already-on-4.2.0-beta","no-user-edit-holders"],"who_is_affected":"Installations running phpMyFAQ 4.2.0-alpha.2 up to but not including 4.2.0-beta are exposed. The risk sits with accounts that hold USER_EDIT, since those are the accounts that can reach the rights-update API; sites with no such accounts beyond a single trusted admin face little added risk. Sites already on 4.2.0-beta or later are not affected.","user_interaction":"no","needs_special_setup":"no","severity_if_unknown":"high"},"cost_usd":0.000697,"input_tokens":3367,"output_tokens":720,"severity_before":"high"},"analyst_status":null,"analyst_note":null,"search":"'-111890':13A,16A '-2026':12A,15A '4.2.0':25B,28B,82C,85C 'access':76B,135C 'account':67B 'across':8A,136C 'admin':2A 'administr':47B,108C 'alpha.2':26B,83C 'api':62B,123C 'beta':29B,86C 'cms':17B 'contain':87C 'creat':72B,131C 'cve':11A,14A 'drop':30B,96C 'edit':50B,73B,111C,132C 'escal':90C 'everi':78B 'faq':71B,130C 'gain':69B,128C 'grant':4A,42B,107C 'hold':48B,109C 'host':23B 'includ':63B,124C 'languag':10A,34B,54B,79B,100C,115C,138C 'language-scop':53B,114C 'per':32B,98C 'per-right':31B,97C 'php':18B 'phpmyfaq':1A,19B,24B,80C 'privileg':89C 'publish':75B,134C 're':41B,106C 're-grant':40B,105C 'restrict':35B,101C 'right':7A,33B,38B,56B,61B,99C,103C,117C,122C 'runtim':20B 'scope':55B,116C 'self':22B 'self-host':21B 'submit':52B,113C 'unrestrict':6A,70B,129C 'updat':60B,121C 'update-right':59B,120C 'updateuserright':45B,94C 'user':37B,49B,110C 'usercontrol':44B,93C 'vulner':91C","nicknames":[],"mitigations":[],"who_affected":"Installations running phpMyFAQ 4.2.0-alpha.2 up to but not including 4.2.0-beta are exposed. The risk sits with accounts that hold USER_EDIT, since those are the accounts that can reach the rights-update API; sites with no such accounts beyond a single trusted admin face little added risk. Sites already on 4.2.0-beta or later are not affected.","tier":"B","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-17T19:16:30+00:00","kev":null,"cvss_vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","cvss_by":"disclosure@vulncheck.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-111890","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-111890","severity":null,"published_at":"2026-10-17T19:16:30+00:00","modified_at":"2026-10-19T15:16:55+00:00","first_seen_at":"2026-10-23T21:57:14+00:00","fetched_at":"2026-10-23T22:28:55+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"}