{"id":"CVE-2026-116183","kind":"vulnerability","aliases":["CVE-2026-116183"],"related":[],"title":"phpMyFAQ: unauthenticated users can modify or delete visitor questions","description":"phpMyFAQ before 4.1.10 contains an object-level authorization bypass vulnerability that allows unauthenticated attackers to modify or delete any visitor question by supplying an arbitrary openQuestionID to POST /api/faq/create. Attackers solving the CAPTCHA can rewrite question categories, forge answered entries in faqquestion_history, or permanently delete questions when records.enableDeleteQuestion is enabled.","summary":"phpMyFAQ before 4.1.10 fails to check object ownership when handling POST /api/faq/create, so an arbitrary openQuestionID can be supplied. An unauthenticated attacker who solves the CAPTCHA can rewrite question categories, forge answered entries, or delete questions when enableDeleteQuestion is on.","severity":"high","cvss":8.7,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["package","php","phpmyfaq","self-hosted"],"not_affected_if":["question-feature-disabled","version-4.1.10-or-later"],"how_to_check":"- Check the installed phpMyFAQ version and compare it to `4.1.10`\n- Look for `records.enableDeleteQuestion` in the phpMyFAQ configuration to see whether deletion is enabled","fix":"- Upgrade phpMyFAQ to `4.1.10` or later\n- Until upgraded, consider disabling `records.enableDeleteQuestion`","status":"open","published_at":"2026-10-25T14:16:58+00:00","first_seen_at":"2026-10-25T14:41:23+00:00","triaged_at":"2026-10-25T14:42:16+00:00","updated_at":"2026-10-25T14:42:16+00:00","category":"package","confidence":0.7,"triage":{"at":"2026-10-25T14:42:16Z","model":"claude-haiku-5-5","output":{"fix":"- Upgrade phpMyFAQ to `4.1.10` or later\n- Until upgraded, consider disabling `records.enableDeleteQuestion`","reach":"internet","title":"phpMyFAQ: unauthenticated users can modify or delete visitor questions","impact":"medium","summary":"phpMyFAQ before 4.1.10 fails to check object ownership when handling POST /api/faq/create, so an arbitrary openQuestionID can be supplied. An unauthenticated attacker who solves the CAPTCHA can rewrite question categories, forge answered entries, or delete questions when enableDeleteQuestion is on.","category":"package","nicknames":[],"who_cares":["phpmyfaq","php","self-hosted"],"confidence":0.7,"needs_auth":"no","worst_case":"unauthenticated attackers alter or delete visitor questions and forge answers","analyst_note":"Confirm the exact affected version range and whether a fix commit or advisory URL exists beyond the NVD entry.","how_to_check":"- Check the installed phpMyFAQ version and compare it to `4.1.10`\n- Look for `records.enableDeleteQuestion` in the phpMyFAQ configuration to see whether deletion is enabled","needs_analyst":true,"not_affected_if":["version-4.1.10-or-later","question-feature-disabled"],"who_is_affected":"Any public phpMyFAQ instance below 4.1.10 that accepts visitor questions through the FAQ create API is exposed, since the flaw requires no login, only a CAPTCHA solve. Instances with the question feature turned off or behind authentication carry less exposure. Deletion is only possible where enableDeleteQuestion is enabled.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000652,"input_tokens":3369,"output_tokens":631,"severity_before":"high"},"analyst_status":null,"analyst_note":null,"search":"'-116183':12A,15A '-2026':11A,14A '/api/faq/create':33B,89C '4.1.10':24B,62C 'allow':72C 'answer':53B,99C 'arbitrari':36B,85C 'attack':43B,74C,90C 'author':68C 'bypass':69C 'captcha':47B,93C 'categori':51B,97C 'check':27B 'contain':63C 'cve':10A,13A 'delet':7A,56B,78C,106C 'enabl':111C 'enabledeletequest':59B 'entri':54B,100C 'fail':25B 'faqquest':102C 'forg':52B,98C 'handl':31B 'histori':103C 'host':21B 'level':67C 'modifi':5A,76C 'object':28B,66C 'object-level':65C 'openquestionid':37B,86C 'ownership':29B 'packag':16B 'perman':105C 'php':17B 'phpmyfaq':1A,18B,22B,60C 'post':32B,88C 'question':9A,50B,57B,81C,96C,107C 'records.enabledeletequestion':109C 'rewrit':49B,95C 'self':20B 'self-host':19B 'solv':45B,91C 'suppli':40B,83C 'unauthent':2A,42B,73C 'user':3A 'visitor':8A,80C 'vulner':70C","nicknames":[],"mitigations":[],"who_affected":"Any public phpMyFAQ instance below 4.1.10 that accepts visitor questions through the FAQ create API is exposed, since the flaw requires no login, only a CAPTCHA solve. Instances with the question feature turned off or behind authentication carry less exposure. Deletion is only possible where enableDeleteQuestion is enabled.","tier":"B","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-25T14:16:58+00:00","kev":null,"cvss_vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/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-2026-116183","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-116183","severity":null,"published_at":"2026-10-25T14:16:58+00:00","modified_at":"2026-10-25T14:16:58+00:00","first_seen_at":"2026-10-25T14:41:23+00:00","fetched_at":"2026-10-25T14:41:23+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"}