CVE-2020-25032: debian debian_linux Path Traversal
CVSS: 7.5v3.1HighModified
AliasesopenSUSE-SU-2020:1415-1openSUSE-SU-2020:1423-1openSUSE-SU-2020:1446-1GHSA-xc3p-ff3m-f46vPYSEC-2020-43UBUNTU-CVE-2020-25032USN-6019-1DEBIAN-CVE-2020-25032DSA-4775-1openSUSE-SU-2020:1393-1openSUSE-SU-2024:11206-1openSUSE-SU-2024:14129-1
Published 31-08-2020Last modified 04-08-2024
Vulnerability summary
CVE-2020-25032 is a high (CVSS 7.5) Path Traversal vulnerability in debian debian_linux. EPSS estimates a 4.02% chance of exploitation in the next 30 days, higher than 90.4% of scored vulnerabilities.
CVSS score
7.5/10
010
High · v3.1 (NVD)EPSS score
4.02%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 3 · Related 3Timeline
- 31-08-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
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 metrics
6 scores · 4 sources · 3 versionsHigh 8.7Preferred score · OSV · Pypi (Ecosystem advisory) · calculated from vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:NSourcesSingle source
High 7.5Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NSourcesAll 4 agree
- OSV · PypiEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Medium 5.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:P/I:N/A:NSourcesSingle source
EPSS trend
Probability
4.02%
Chance of exploitation in the next 30 days
Percentile
90%
Versus all other CVEs
30-day change
0.00 pp
From 4.02% on 19-09-2026
19-09-202619-10-2026
EPSS score4.02%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Opensuse5 products
- backports_sle15.0:sp1 | 15.0:sp2
- leapEOL15.1 | 15.2
- python-Flask-Cors&distro=openSUSE Leap 15.1< 3.0.8-lp152.2.3.1
- python-Flask-Cors&distro=openSUSE Leap 15.2< 3.0.8-lp152.2.3.1
- python-Flask-Cors&distro=openSUSE Tumbleweed< 4.0.0-1.3 | < 3.0.10-1.3
Debian2 products
- python-flask-cors< 3.0.9-1 | < 3.0.7-1+deb10u1
- debian_linuxEOL10.0
Suse2 products
- python-Flask-Cors&distro=SUSE Package Hub 15 SP1< 3.0.7-bp151.2.3.1
- python-Flask-Cors&distro=SUSE Package Hub 15 SP2< 3.0.8-bp152.2.3.1
Flask-cors_project1 product
- flask-cors< 3.0.9
PyPI1 product
- flask-cors< 3.0.9
Ubuntu1 product
- python-flask-cors< 3.0.8-2ubuntu0.1
6 vendors · 12 products
References
21 links- lists.opensuse.org/opensuse-security-announce/2020-09/msg00028.htmlVendor AdvisoryX Refsource SUSEWEBMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2020-09/msg00032.htmlVendor AdvisoryX Refsource SUSEWEBMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2020-09/msg00039.htmlVendor AdvisoryX Refsource SUSEWEBMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2020-09/msg00048.htmlVendor AdvisoryX Refsource SUSEWEBMailing ListThird Party Advisory
www.debian.org/security/2020/dsa-4775Vendor AdvisoryX Refsource DEBIANWEBAdvisoryThird Party Advisory- lists.opensuse.org/archives/…Advisory
- lists.opensuse.org/archives/…Advisory
Show all 21 references
- lists.opensuse.org/archives/…Advisory
- lists.opensuse.org/archives/…Advisory