corydolphin/flask-cors · Security
Flask-Cors Directory Traversal vulnerability
- GHSA ID
- GHSA-xc3p-ff3m-f46v
- CVE ID
- CVE-2020-25032
- Severity
- high
- Published
- Updated
- CVSS
- 7.5 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- CVSS v3
- 7.5 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- CVSS v4
- 8.7 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Description
An issue was discovered in Flask-CORS (aka CORS Middleware for Flask) before 3.0.9. It allows ../ directory traversal to access private resources because resource matching does not ensure that pathnames are in a canonical format.
CWEs
- CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
References
- https://nvd.nist.gov/vuln/detail/CVE-2020-25032 ↗
- https://github.com/corydolphin/flask-cors/commit/67c4b2cc98ae87cf1fa7df4f97fd81b40c79b895 ↗
- https://github.com/corydolphin/flask-cors/releases/tag/3.0.9 ↗
- https://www.debian.org/security/2020/dsa-4775 ↗
- http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00028.html ↗
- http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00032.html ↗
- http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00039.html ↗
- http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00048.html ↗
- https://github.com/advisories/GHSA-xc3p-ff3m-f46v ↗
- https://github.com/pypa/advisory-database/tree/main/vulns/flask-cors/PYSEC-2020-43.yaml ↗