{"id":"CVE-2026-111939","kind":"vulnerability","aliases":["CVE-2026-111939"],"related":[],"title":"Frappe Helpdesk: portal users can create tickets as other customers","description":"Frappe Helpdesk before 1.26.0 contains an authorization bypass vulnerability that allows authenticated portal users to create tickets impersonating other customers by supplying a raised_by value. Attackers can call the hd_ticket.api.new endpoint with a victim's email to plant phishing tickets in their portal and read their replies via get_ticket_activities.","summary":"Frappe Helpdesk before 1.26.0 lets an authenticated portal user set the raised_by field when creating a ticket, so the ticket is filed under another customer's email. The same flaw lets the attacker plant phishing tickets in a victim's portal and read the victim's replies through get_ticket_activities.","severity":"medium","cvss":5.1,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["frappe","helpdesk","package","self-hosted"],"not_affected_if":["already-upgraded","no-portal-users"],"how_to_check":"- Check the installed Helpdesk version (`bench version` or the app list in the Frappe bench) and confirm it is below `1.26.0`\n- Review whether portal users can reach the hd_ticket.api.new endpoint","fix":"- Upgrade Frappe Helpdesk to `1.26.0` or later\n- Restart the bench after upgrading","status":"open","published_at":"2026-10-19T14:17:01+00:00","first_seen_at":"2026-10-23T21:57:18+00:00","triaged_at":"2026-10-25T04:29:07+00:00","updated_at":"2026-10-25T04:29:07+00:00","category":"package","confidence":0.7,"triage":{"at":"2026-10-25T04:29:07Z","model":"claude-haiku-5-5","output":{"fix":"- Upgrade Frappe Helpdesk to `1.26.0` or later\n- Restart the bench after upgrading","reach":"internet","title":"Frappe Helpdesk: portal users can create tickets as other customers","impact":"medium","summary":"Frappe Helpdesk before 1.26.0 lets an authenticated portal user set the raised_by field when creating a ticket, so the ticket is filed under another customer's email. The same flaw lets the attacker plant phishing tickets in a victim's portal and read the victim's replies through get_ticket_activities.","category":"package","nicknames":[],"who_cares":["frappe","helpdesk","self-hosted"],"confidence":0.7,"needs_auth":"yes","worst_case":"Attacker files tickets as victims and reads their replies","analyst_note":"","how_to_check":"- Check the installed Helpdesk version (`bench version` or the app list in the Frappe bench) and confirm it is below `1.26.0`\n- Review whether portal users can reach the hd_ticket.api.new endpoint","needs_analyst":false,"not_affected_if":["no-portal-users","already-upgraded"],"who_is_affected":"Sites running Frappe Helpdesk before 1.26.0 with customer portal logins enabled, since any portal account can take part in the attack. Internal-only deployments where no external users hold portal accounts have a much smaller exposure, but the upgrade is still the fix.","user_interaction":"no","needs_special_setup":"no","severity_if_unknown":"medium"},"cost_usd":0.000599,"input_tokens":3343,"output_tokens":530,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-111939':13A,16A '-2026':12A,15A '1.26.0':26B,78C 'activ':74B,126C 'allow':85C 'anoth':47B 'attack':56B,101C 'authent':29B,86C 'author':81C 'bypass':82C 'call':103C 'contain':79C 'creat':6A,38B,90C 'custom':10A,48B,94C 'cve':11A,14A 'email':50B,111C 'endpoint':106C 'field':36B 'file':45B 'flaw':53B 'frapp':1A,17B,23B,75C 'get':72B,124C 'hd_ticket.api.new':105C 'helpdesk':2A,18B,24B,76C 'host':22B 'imperson':92C 'let':27B,54B 'packag':19B 'phish':58B,114C 'plant':57B,113C 'portal':3A,30B,64B,87C,118C 'rais':34B,98C 'read':66B,120C 'repli':70B,122C 'self':21B 'self-host':20B 'set':32B 'suppli':96C 'ticket':7A,40B,43B,59B,73B,91C,115C,125C 'user':4A,31B,88C 'valu':100C 'via':123C 'victim':62B,68B,109C 'vulner':83C","nicknames":[],"mitigations":[],"who_affected":"Sites running Frappe Helpdesk before 1.26.0 with customer portal logins enabled, since any portal account can take part in the attack. Internal-only deployments where no external users hold portal accounts have a much smaller exposure, but the upgrade is still the fix.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-19T14:17:01+00:00","kev":null,"cvss_vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/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-2026-111939","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-111939","severity":null,"published_at":"2026-10-19T14:17:01+00:00","modified_at":"2026-10-19T21:14:14+00:00","first_seen_at":"2026-10-23T21:57:18+00:00","fetched_at":"2026-10-23T22:28:57+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"}