Auth bypass in Readdle Documents
CVE-2019-20801
An issue was discovered in the Readdle Documents app before 6.9.7 for iOS. The application's file-transfer web server allows for cross-origin requests from any domain, and the WebSocket server lacks authorization control. Any web site can execute JavaScript code (that accesses a user's data) via cross-origin requests.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.010 (61.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 62nd percentile — 61.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000
Affected products
Weakness classification (CWE)
References
- apps.apple.com/us/app/documents-by-readdle/id364901807 (Product, Release Notes)
- logicaltrust.net/blog/2019/12/documents.html (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-20801?
- CVE-2019-20801 is a medium-severity vulnerability in Readdle Documents, classified under Missing Authorization. CVSS score: 5.3/10. Published 2020-05-18.
- How severe is CVE-2019-20801?
- Medium severity. CVSS v3 base score is 5.3 out of 10.