CVE-2020-28724

mediumpriority · track · 25EPSS 0.017 · 77 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.68% (77th) EPSS

CVSS 5.8 · medium

Is it mine?

3 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · osv · nvd

EPSS · scored 2026-10-27

Open redirect vulnerability in werkzeug before 0.11.6 via a double slash in the URL.

cvss

Technical severity, 0–10. One row per scoring source.

6.1

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.05.8mediumAV:N/AC:M/Au:N/C:P/I:P/A:Nprimary · NVD / NIST USexploitability 8.6 · impact 4.9

v3.16.1mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:Nprimary · NVD / NIST USexploitability 2.8 · impact 2.7

v3.16.1mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:Nsecondary · OSV

v3.15.6mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-601USprimaryCWE-601US

affected products (3)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
palletsprojects werkzeug< 0.11.6nvdUScpe:2.3:a:palletsprojects:werkzeug:*:*:*:*:*:*:*:*
PyPI werkzeug< 0.11.6osvUSpkg:pypi/werkzeug

advisories (2)

Vendor and ecosystem advisories describing this.

GHSA-3p3h-qghp-hvh2Open Redirect in werkzeug2021-04-20ghsa · osvUS
Open redirect vulnerability in werkzeug before 0.11.6 via a double slash in the URL.
PYSEC-2020-1572020-11-18vendor · osvUS
Open redirect vulnerability in werkzeug before 0.11.6 via a double slash in the URL.

also known as (6)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd osv nvd NVD CVE.org MITRE

published 2020-11-18modified 2026-06-17

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references (13)

External citations — patches, advisories, analysis.

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