CVE-2020-25032

HIGH EPSS 89.3%
Published Aug 31, 20205y ago · Modified Jun 17, 20262w ago
7.5 CVSS 3.1
High
Find Similar
Published Aug 31, 2020 5y ago
Last Modified Jun 17, 2026 2w ago

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 Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity None
Availability None

Threat Intelligence

EPSS Exploit Probability
89.3% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-22 Path Traversal Resource Mgmt

Affected Products 6

VendorProductVersionRange
flask-cors_projectflask-cors* <3.0.9
debiandebian_linux10.0any
opensusebackports_sle15.0any
opensusebackports_sle15.0any
opensuseleap15.1any
opensuseleap15.2any

References 6

  • lists.opensuse.org http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00028.html
    Mailing ListThird Party Advisory
  • lists.opensuse.org http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00032.html
    Mailing ListThird Party Advisory
  • lists.opensuse.org http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00039.html
    Mailing ListThird Party Advisory
  • lists.opensuse.org http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00048.html
    Mailing ListThird Party Advisory
  • github.com https://github.com/corydolphin/flask-cors/releases/tag/3.0.9
    Third Party Advisory
  • debian.org https://www.debian.org/security/2020/dsa-4775
    Third Party Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.