Description
The Restaurant Brands International (RBI) assistant platform through 2025-09-06 has an "Anyone Can Join This Party" signup API that does not verify user account creation, allowing a remote unauthenticated attacker to create a user account.
Affected products
rbi: restaurant brands international assistant
References5
- archive.today/fMYQp Broken Link
- bobdahacker.com/blog/rbi-hacked-drive-thrus/ Permissions Required
- web.archive.org/web/20250906134240/https:/bobdahacker.com/blog/… Not Applicable
- www.malwarebytes.com/blog/news/2025/09/popeyes-tim-hortons-burg… Press/Media CoverageThird Party Advisory
- www.yahoo.com/news/articles/burger-king-hacked-attackers-impres… Press/Media CoverageThird Party Advisory
Metrics
- CVSS 3.1
-
8.6
HIGH
Score source: NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N - EPSS — exploit probability
- 0% percentile: 42 · as of 10 November 2026
- CWE
- CWE-862
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