VulnerabilityModified
CVE-2020-25032
It allows ../ directory traversal to access private resources because resource matching does not ensure that pathnames are in a canonical format.
HIGH 7.5EPSS 4.02%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (4.02%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 4.02% probability · 90th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-22
- Affected
- flask-cors project/flask-cors · debian/debian linux · opensuse/backports sle · opensuse/leap
- Source
- cve@mitre.org
References
- http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00028.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00032.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00039.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00048.htmlMailing List, Third Party Advisory
- https://github.com/corydolphin/flask-cors/releases/tag/3.0.9Third Party Advisory
- https://www.debian.org/security/2020/dsa-4775Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00028.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00032.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00039.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00048.htmlMailing List, Third Party Advisory
- https://github.com/corydolphin/flask-cors/releases/tag/3.0.9Third Party Advisory
- https://www.debian.org/security/2020/dsa-4775Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.