CVE-2024-27083

mediumpriority · track · 24EPSS 0.006 · 47 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.57% (47th) EPSS

CVSS 6.1 · medium

Is it mine?

4 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · osv · nvd

EPSS · scored 2026-10-27

Flask-AppBuilder is an application development framework, built on top of Flask. A Cross-Site Scripting (XSS) vulnerability has been discovered on the OAuth login page. An attacker could trick a user to follow a specially crafted URL to the OAuth login page. This URL could inject and execute malicious javascript code that would get executed on the user's browser. This issue was introduced on 4.1.4 and patched on 4.2.1.

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

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

v3.14.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:Nsecondary · ENISA EU

v3.14.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:Nsecondary · security-advisories@github.comexploitability 2.8 · impact 1.4

v3.14.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/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)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: poc · Automatable: no · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-79USprimaryCWE-79US

affected products (4)

Products and version ranges known to be affected.

dpgaspar Flask-AppBuilderall versionsenisa_euvdEU
dpgaspar Flask-AppBuilder4.1.4, → 4.2.1enisa_euvdEU
dpgaspar flask-appbuilder4.1.4 → 4.2.1nvdUScpe:2.3:a:dpgaspar:flask-appbuilder:*:*:*:*:*:*:*:*
PyPI flask-appbuilder4.1.4 → 4.2.1osvUSpkg:pypi/flask-appbuilder

advisories (2)

Vendor and ecosystem advisories describing this.

GHSA-fqxj-46wg-9v84Flask-AppBuilder's OAuth login page subject to Cross Site Scripting (XSS)2024-02-28ghsa · osvUS
### Impact A Cross-Site Scripting (XSS) vulnerability has been discovered on the OAuth login page. An attacker could trick a user to follow a specially crafted URL to the OAuth login page. This URL could inject and execute malicious javascript code that would get executed on the user's browser. Impacted versions: Flask-AppBuilder version 4.1.4 up to and including 4.2.0 ### Patches This issue was introduced on 4.1.4 and patched on 4.2.1, user's should upgrade to 4.2.1 or newer versions.
PYSEC-2026-1381Flask-AppBuilder's OAuth login page subject to Cross Site Scripting (XSS)2026-07-07vendor · osvUS
### Impact A Cross-Site Scripting (XSS) vulnerability has been discovered on the OAuth login page. An attacker could trick a user to follow a specially crafted URL to the OAuth login page. This URL could inject and execute malicious javascript code that would get executed on the user's browser. Impacted versions: Flask-AppBuilder version 4.1.4 up to and including 4.2.0 ### Patches This issue was introduced on 4.1.4 and patched on 4.2.1, user's should upgrade to 4.2.1 or newer versions.

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 2024-02-29modified 2026-06-17

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+53008 more

references (7)

External citations — patches, advisories, analysis.

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