{"id":"CVE-2026-113677","kind":"vulnerability","aliases":["CVE-2026-113677"],"related":[],"title":"Froxlor: authenticated customers can delete reseller-provisioned main domains via API","description":"Froxlor from 0.10.0 before 2.3.15 contains a missing authorization vulnerability in the SubDomains.delete API command that allows authenticated customers to delete reseller-provisioned main domains by supplying a main domain id. Attackers can bypass the web UI restriction to remove domains, orphan vhost, DNS and subdomain records, and drive subdomains_used below zero to gain extra subdomain allowance.","summary":"Froxlor's SubDomains.delete API command does not check authorization, so an authenticated customer can delete reseller-provisioned main domains by supplying a main domain id. The same flaw orphans vhost and DNS records and can push subdomain usage counters below zero to gain extra subdomain allowance.","severity":"medium","cvss":5.4,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["froxlor","other","self-hosted","shared-hosting"],"not_affected_if":["default-config"],"how_to_check":"- Check the installed Froxlor version in the panel footer or `froxlor/version.inc.php`, and compare it with `2.3.15`\n- Review the API and panel logs for SubDomains.delete calls made by customer accounts against domains they do not own","fix":"- Upgrade Froxlor to `2.3.15` or later\n- Review domain and subdomain records for orphaned vhost, DNS entries and negative subdomains_used values","status":"open","published_at":"2026-10-20T16:17:12+00:00","first_seen_at":"2026-10-23T21:57:20+00:00","triaged_at":"2026-10-25T04:16:28+00:00","updated_at":"2026-10-25T04:16:28+00:00","category":"other","confidence":0.7,"triage":{"at":"2026-10-25T04:16:28Z","model":"claude-haiku-5-5","output":{"fix":"- Upgrade Froxlor to `2.3.15` or later\n- Review domain and subdomain records for orphaned vhost, DNS entries and negative subdomains_used values","reach":"network","title":"Froxlor: authenticated customers can delete reseller-provisioned main domains via API","impact":"medium","summary":"Froxlor's SubDomains.delete API command does not check authorization, so an authenticated customer can delete reseller-provisioned main domains by supplying a main domain id. The same flaw orphans vhost and DNS records and can push subdomain usage counters below zero to gain extra subdomain allowance.","category":"other","nicknames":[],"who_cares":["froxlor","self-hosted","shared-hosting"],"confidence":0.7,"needs_auth":"yes","worst_case":"Customer deletes reseller domains and gains extra subdomain allowance","analyst_note":"","how_to_check":"- Check the installed Froxlor version in the panel footer or `froxlor/version.inc.php`, and compare it with `2.3.15`\n- Review the API and panel logs for SubDomains.delete calls made by customer accounts against domains they do not own","needs_analyst":false,"not_affected_if":["default-config"],"who_is_affected":"Installations running Froxlor from 0.10.0 before 2.3.15 that have customer accounts with API access and reseller-provisioned main domains. Single-tenant installs with no customer accounts are unlikely to be exposed.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000608,"input_tokens":3368,"output_tokens":543,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-113677':15A,18A '-2026':14A,17A '0.10.0':76C '2.3.15':78C 'allow':73B,90C,132C 'api':12A,30B,87C 'attack':106C 'authent':2A,38B,91C 'author':35B,82C 'bypass':108C 'check':34B 'command':31B,88C 'contain':79C 'counter':66B 'custom':3A,39B,92C 'cve':13A,16A 'delet':5A,41B,94C 'dns':59B,118C 'domain':10A,46B,51B,99C,104C,115C 'drive':123C 'extra':71B,130C 'flaw':55B 'froxlor':1A,19B,27B,74C 'gain':70B,129C 'host':23B,26B 'id':52B,105C 'main':9A,45B,50B,98C,103C 'miss':81C 'orphan':56B,116C 'provis':8A,44B,97C 'push':63B 'record':60B,121C 'remov':114C 'resel':7A,43B,96C 'reseller-provis':6A,42B,95C 'restrict':112C 'self':22B 'self-host':21B 'share':25B 'shared-host':24B 'subdomain':64B,72B,120C,124C,131C 'subdomains.delete':29B,86C 'suppli':48B,101C 'ui':111C 'usag':65B 'use':125C 'vhost':57B,117C 'via':11A 'vulner':83C 'web':110C 'zero':68B,127C","nicknames":[],"mitigations":[],"who_affected":"Installations running Froxlor from 0.10.0 before 2.3.15 that have customer accounts with API access and reseller-provisioned main domains. Single-tenant installs with no customer accounts are unlikely to be exposed.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-20T16:17:12+00:00","kev":null,"cvss_vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/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-2026-113677","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-113677","severity":null,"published_at":"2026-10-20T16:17:12+00:00","modified_at":"2026-10-20T19:17:33+00:00","first_seen_at":"2026-10-23T21:57:20+00:00","fetched_at":"2026-10-23T22:28:58+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"}