Published finding · Bugcrowd

Mastercard Public Bug Bounty A finding accepted against Public Others Target. Bugcrowd published no award figure for it.

critical unresolved

01 · The record

Everything Bugcrowd published about this

Programme: Mastercard Public Bug Bounty In our directory, so it has reviews and a grade.
Platform handle: mastercard
Asset: Public Others Target The specific asset the finding landed against, as the platform named it.
Severity: critical Bugcrowd rates P1–P5; this is that rating in HackerOne's words so the two feeds can sit in one table.
Award: Not published This does not mean nothing was paid. Both platforms let a programme accept a finding without publishing the figure, and most do.
Found by: Withheld The platform did not publish a name. We store that as withheld and never guess.
State: unresolved — accepted, not yet fixed
Accepted: 3 September 2026 21 days ago. This is the date the programme accepted the finding.
First seen here: 3 September 2026 When our sweep first read this entry. It says nothing about the finding, only about us.
Platform reference: 41d14ced-0a76-4709-88f5-0b807a6201be

View the programme on Bugcrowd ↗ Bugcrowd publishes the acceptance, not the submission. There is no public write-up for this finding anywhere, and no page for the entry itself, so this link goes to the programme. Everything Bugcrowd did publish about it is already above.

03 · The programme

What else Mastercard Public Bug Bounty has published

Public Others Target high · unresolved · withheld · 13 days ago —
Public Others Target medium · unresolved · rootdaddy · 16 days ago $135
Public Others Target high · unresolved · valbrux · 17 days ago —
Public Others Target low · unresolved · withheld · 20 days ago —
Public Others Target low · unresolved · withheld · 20 days ago —
Public Others Target low · unresolved · withheld · 20 days ago —
Public Others Target low · unresolved · withheld · 21 days ago —
Public Others Target medium · unresolved · Jacke · 23 days ago —

See Mastercard Public Bug Bounty's grade and researcher reviews →

Where this came from. One row of a public platform feed, stored as published and never edited. We hold no report title, no write-up and no reproduction steps, because the feeds do not carry them and we do not go looking for them. A withheld name stays withheld; if a finder later asks the platform to un-name them, the next sweep un-names them here. Absence of an award figure is publication policy, not evidence a programme did not pay.