CVE-2024-27083 json
Flask-AppBuilder's OAuth login page subject to Cross Site Scripting (XSS)
published 2024-02-28 2 y ago modified 2026-09-10 1 mo ago also EUVD-2024-0631 , GHSA-fqxj-46wg-9v84 , PYSEC-2026-1381
- cvss
- 4.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 47%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- pypi flask-appbuilder 4.2.1
- dpgaspar Flask-AppBuilder 4.2.1
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
0.57% chance of exploitation in the next 30 days, higher than 47% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N |
| GitHub | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N |
| NVD | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| OSV | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | flask-appbuilder | >=4.1.4, <4.2.1 |
4.2.1 |
Affected products
- dpgaspar Flask-AppBuilder
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/dpgaspar/Flask-AppBuilder/commit/3d17741886e4b3c384d0570de69689e4117aa812
web, patch
-
github.com
/dpgaspar/Flask-AppBuilder/security/advisories/GHSA-fqxj-46wg-9v84
web, vendor-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2024-27083
advisory
-
github.com
/dpgaspar/Flask-AppBuilder
package
-
pypi.org
/project/flask-appbuilder
package
-
github.com
/advisories/GHSA-fqxj-46wg-9v84
advisory
Sources
- CVE List CVE-2024-27083
- GitHub Advisory GHSA-fqxj-46wg-9v84
- NVD CVE-2024-27083
- OSV PYSEC-2026-1381
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.