CVSS 4.0
9.9 criticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:NCVE-2026-111490 tpc software matchpoint
Critical (9.9) in tpc software matchpoint. EPSS 0.4% estimated probability of exploitation activity in the next 30 days.
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.
Severity
- EPSS
- 0.4% (unchanged from 0.4% a week ago) estimated probability of exploitation activity in the next 30 days; 32nd percentile. Scored 2026-11-13. A forecast for this CVE across the internet, not for your own systems.
- CISA's assessment (SSVC)
- Exploitation: none · Automatable: no · Technical impact: total, assessed 2026-11-10. From CISA's Vulnrichment in the CVE List: whether it is exploited, whether exploiting it can be automated, and how much control it gives.
- CWE
- CWE-639 Authorization Bypass Through User-Controlled Key
- OWASP Top 10
- A01:2025 Broken Access Control
- Published
- Modified
- Assigned by
- INCIBE (CNA)
- NVD analysis
- Deferred: the NVD does not plan to analyze it
- Record from
- the NVD, synced
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Explain CVE-2026-111490 for an engineer deciding whether to act. Use https://cve.bz/api/public/cves/CVE-2026-111490?via=ask-ai-copy and https://cve.bz/cve/CVE-2026-111490?via=ask-ai-copy as the source of truth: what is affected and which versions fix it, whether it is in CISA KEV, public exploits, and its EPSS (an internet-wide 30-day estimate of exploitation activity, not a forecast for my systems). If they give no fixed versions, use the CVE record https://cveawg.mitre.org/api/cve/CVE-2026-111490 or the vendor advisory, not third-party mirrors. Tell me how to check whether I am affected and how to verify a fix. Cite the sources and say where they are uncertain.Opens a third-party assistant; its answer is its own, not cve.bz's. The prompt holds only this CVE's id and public links.
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Affected
- tpc software:matchpoint
Versions
From the CNA's record in the CVE List.
| Product | Affected |
|---|---|
| TPC Software Matchpoint | Versions prior to latest one |