{"id":"CVE-2024-27083","aliases":["GHSA-fqxj-46wg-9v84","PYSEC-2026-1381"],"title":"Flask-AppBuilder's OAuth login page subject to Cross Site Scripting (XSS)","summary":"Flask-AppBuilder's OAuth login page subject to Cross Site Scripting (XSS)","severity":"medium","cvss":4.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N","vendor":"flask-appbuilder","product":"flask-appbuilder","ecosystem":"pip","affected":["flask-appbuilder >= 4.1.4, < 4.2.1"],"patched":["flask-appbuilder 4.2.1"],"published":"2024-02-28","updated":"2026-09-10","sourceUpdated":"2026-09-10T03:50:06.227675631Z","source":"OSV","sourceUrl":"https://osv.dev/vulnerability/GHSA-fqxj-46wg-9v84","references":[{"url":"https://github.com/dpgaspar/Flask-AppBuilder/security/advisories/GHSA-fqxj-46wg-9v84"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-27083"},{"url":"https://github.com/dpgaspar/Flask-AppBuilder/commit/3d17741886e4b3c384d0570de69689e4117aa812"},{"url":"https://github.com/dpgaspar/Flask-AppBuilder"}],"tags":["osv","pip"],"epss":0.00567,"epssPercentile":0.45801,"ingestedAt":"2026-07-08T18:25:49.110Z","slug":"CVE-2024-27083","body":"## Overview\n\n### Impact\nA 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.\n\nImpacted versions:\nFlask-AppBuilder version 4.1.4 up to and including 4.2.0\n\n### Patches\nThis issue was introduced on 4.1.4 and patched on 4.2.1, user's should upgrade to 4.2.1 or newer versions.\n\n## Affected packages\n\n- `flask-appbuilder >= 4.1.4, < 4.2.1`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `flask-appbuilder 4.2.1`","depth":"sunlit","depthScore":24,"depthScoreParts":{"impact":23.7,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}