Auth bypass in Rbi Restaurant Brands International Assistant
CVE-2025-62642
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.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.005 (39.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 39th percentile — 39.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: +0.000
Affected products
Weakness classification (CWE)
References
- www.yahoo.com/news/articles/burger-king-hacked-attackers-impressed-124154038.ht… (Third Party Advisory, Press/Media Coverage)
- www.malwarebytes.com/blog/news/2025/09/popeyes-tim-hortons-burger-king-platform… (Third Party Advisory, Press/Media Coverage)
- web.archive.org/web/20250906134240/https:/bobdahacker.com/blog/rbi-hacked-drive… (Not Applicable)
- bobdahacker.com/blog/rbi-hacked-drive-thrus/ (Permissions Required)
- archive.today/fMYQp (Broken Link)
Frequently asked questions
- What is CVE-2025-62642?
- CVE-2025-62642 is a medium-severity vulnerability in Rbi Restaurant Brands International Assistant, classified under Missing Authorization. CVSS score: 5.8/10. Published 2025-10-17.
- How severe is CVE-2025-62642?
- Medium severity. CVSS v3 base score is 5.8 out of 10.