CVE-2021-23385

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

1.24% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 68.9% of scored records. A rank, not a probability.

NVD base score

6.1 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2022-08-02 13:25Z4 YR AGO

Last updated

2024-09-16 22:08Z2 YR AGO

Reserved

2021-01-08

Assigning CNA

snyk

Record state

PUBLISHED

Severity

Medium (CVSS 5.4)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:U/RC:C

Weaknesses

• CWE-601URL Redirection to Untrusted Site ('Open Redirect')Base

Data version

5.1

Document digest

1129e600ea0e112e80850493839c9786e9169126948ea131c42bad3d90389bb8

• security.snyk.iohttps://security.snyk.io/vuln/SNYK-PYTHON-FLASKSECURITY-1293234
• github.comhttps://github.com/mattupstate/flask-security
• snyk.iohttps://snyk.io/blog/url-confusion-vulnerabilities/
• lists.debian.org[debian-lts-announce] 20230828 [SECURITY] [DLA 3545-1] flask-security security updatehttps://lists.debian.org/debian-lts-announce/2023/08/msg00034.htmlmailing-list