{"id":"CVE-2026-111490","kind":"vulnerability","aliases":["CVE-2026-111490"],"related":[],"title":"MatchPoint (TPC Software) API: IDOR via actingasuser header exposes user and banking data; vendor says server fix deployed","description":"Insecure direct object reference (IDOR) vulnerability in the MatchPoint API, which relies on the `actingasuser` HTTP header without verifying the requester's authorization for the specified user. Manipulation of sequential identifiers allows access to personal, banking, and financial data, private messages, and QR codes for physical access, as well as the ability to modify third-party accounts, change passwords, impersonate users, and transfer virtual balances.","summary":"The MatchPoint API trusts the `actingasuser` HTTP header without checking that the requester is allowed to act as that user. By changing sequential identifiers, an attacker can read personal, banking and financial data, private messages and QR codes, and can change passwords, impersonate users and transfer virtual balances.","severity":"critical","cvss":9.9,"epss":null,"exploited":false,"exploited_at":null,"products":[{"name":"MatchPoint","fixed":[],"affected":"MatchPoint platform API, versions not stated","ecosystem":"vendor"}],"ecosystems":[],"tags":["api","idor","matchpoint","matchpoint-api","sports-facility","tpc-software","vendor"],"not_affected_if":[],"how_to_check":"No version check applies: the fix is server-side. If you operate a MatchPoint instance or integrate its API, confirm with TPC Software that the fix is applied to your deployment and review API logs for requests where the actingasuser header differs from the authenticated user. Also check whether you run the MatchPoint Android app and update to the latest version for the other six CVEs in the same advisory.","fix":"Server-side fix already deployed by TPC Software and applied regardless of app version (per INCIBE-CERT relaying the manufacturer). No client or version action stated for this CVE; no fixed version number published.","status":"open","published_at":"2026-11-05T22:17:43+00:00","first_seen_at":"2026-11-05T22:46:06+00:00","triaged_at":"2026-11-05T22:46:34+00:00","updated_at":"2026-11-05T22:48:08+00:00","category":"vendor","confidence":0.6,"triage":{"at":"2026-11-05T22:46:34Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"unknown","title":"MatchPoint API: forged acting-user header exposes banking data and transfers","impact":"high","summary":"The MatchPoint API trusts the `actingasuser` HTTP header without checking that the requester is allowed to act as that user. By changing sequential identifiers, an attacker can read personal, banking and financial data, private messages and QR codes, and can change passwords, impersonate users and transfer virtual balances.","audience":"businesses","category":"vendor","nicknames":[],"who_cares":["matchpoint-api"],"confidence":0.5,"fix_status":"unknown","needs_auth":"unknown","worst_case":"Attacker impersonates users, reads banking data, transfers balances","analyst_note":"Confirm which products use the MatchPoint API, whether an account is needed to send the header, and whether the vendor has published a fix or advisory; the NVD entry gives none.","how_to_check":"unknown","plain_action":"","needs_analyst":true,"not_affected_if":[],"who_is_affected":"unknown","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"critical"},"cost_usd":0.000944,"input_tokens":4278,"output_tokens":1033,"severity_before":"critical"},"analyst_status":"done","analyst_note":"Confirm which products use the MatchPoint API, whether an account is needed to send the header, and whether the vendor has published a fix or advisory; the NVD entry gives none.","search":"'-111490':21A,24A '-2026':20A,23A 'abil':138C 'access':119C,133C 'account':144C 'act':55B 'actingasus':7A,44B,101C 'allow':53B,118C 'api':4A,26B,31B,41B,96C 'attack':64B 'author':109C 'balanc':86B,152C 'bank':12A,68B,122C 'chang':60B,79B,145C 'check':48B 'code':76B,130C 'cve':19A,22A 'data':13A,71B,125C 'deploy':18A 'direct':88C 'expos':9A 'facil':34B 'financi':70B,124C 'fix':17A 'header':8A,46B,103C 'http':45B,102C 'identifi':62B,117C 'idor':5A,27B,91C 'imperson':81B,147C 'insecur':87C 'manipul':114C 'matchpoint':1A,25A,28B,30B,40B,95C 'matchpoint-api':29B 'messag':73B,127C 'modifi':140C 'object':89C 'parti':143C 'password':80B,146C 'person':67B,121C 'physic':132C 'privat':72B,126C 'qr':75B,129C 'read':66B 'refer':90C 'reli':98C 'request':51B,107C 'say':15A 'sequenti':61B,116C 'server':16A 'softwar':3A,37B 'specifi':112C 'sport':33B 'sports-facil':32B 'third':142C 'third-parti':141C 'tpc':2A,36B 'tpc-softwar':35B 'transfer':84B,150C 'trust':42B 'user':10A,58B,82B,113C,148C 'vendor':14A,38B 'verifi':105C 'via':6A 'virtual':85B,151C 'vulner':92C 'well':135C 'without':47B,104C","nicknames":[],"mitigations":[],"who_affected":"Sports facilities and clubs that use TPC Software's MatchPoint management platform, and the members whose personal, banking and financial data, messages and access QR codes it holds. The API trusted the actingasuser header without checking the caller may act as that user, so sequential IDs could be enumerated. The CVSS vector (PR:N) indicates no privileges required; INCIBE does not say whether an account is needed. The vendor says the server fix is already live, so customers mainly need to confirm it with the vendor.","tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"available","audience":"businesses","plain_action":null,"pkeys":["matchpoint"],"ptokens":["matchpoint"],"labels":["api","critical","idor","matchpoint","matchpointapi","sportsfacility","tpcsoftware","vendor"],"campaign_type":null,"first_public_at":"2026-11-05T22:17:43+00:00","kev":null,"cvss_vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/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":"cve-coordination@incibe.es","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-111490","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-111490","severity":null,"published_at":"2026-11-05T22:17:43+00:00","modified_at":"2026-11-05T22:36:02+00:00","first_seen_at":"2026-11-05T22:46:06+00:00","fetched_at":"2026-11-05T22:46:06+00:00","note":null},{"source":"analyst","external_id":"CVE-2026-111490:1835","url":"https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-tpc-softwares-matchpoint","severity":null,"published_at":"2026-11-05T22:48:08+00:00","modified_at":"2026-11-05T22:48:08+00:00","first_seen_at":"2026-11-05T22:48:08+00:00","fetched_at":"2026-11-05T22:48:08+00:00","note":"Primary: INCIBE-CERT advisory INCIBE-2026-841 (coordinator, relaying manufacturer; not vendor's own page, so nothing marked verified). Server fix deployed per manufacturer, no version number. Not exploited per INCIBE; no PoC found. Sibling CVEs 111489-111495 same advisory.","cites":["https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-tpc-softwares-matchpoint"]}],"documents":[{"id":81214,"url":"https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-tpc-softwares-matchpoint","title":"INCIBE-2026-841: Multiple Vulnerabilities in TPC Software's MatchPoint","kind":"advisory","source":"analyst","publisher":null,"text":null,"published_at":null,"relation":"advisory","confidence":null,"note":null}],"exploit_sources":[],"notice":"Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai"}