FlaskBB is a Forum Software written in Python using the micro framework Flask. Prior to version 2.2.1, a Server-Side Request Forgery (SSRF) vulnerability in get_image_info() allows any authenticated user to force the server to send HTTP requests to arbitrary internal endpoints, including cloud metadata services. This is a blind SSRF with confirmed internal port scanning and internal API triggering capabilities. Version 2.2.1 patches the issue.
History

Thu, 23 Jul 2026 05:45:00 +0000

Type Values Removed Values Added
First Time appeared Flaskbb
Flaskbb flaskbb
Vendors & Products Flaskbb
Flaskbb flaskbb

Wed, 22 Jul 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 21 Jul 2026 20:45:00 +0000

Type Values Removed Values Added
Description FlaskBB is a Forum Software written in Python using the micro framework Flask. Prior to version 2.2.1, a Server-Side Request Forgery (SSRF) vulnerability in get_image_info() allows any authenticated user to force the server to send HTTP requests to arbitrary internal endpoints, including cloud metadata services. This is a blind SSRF with confirmed internal port scanning and internal API triggering capabilities. Version 2.2.1 patches the issue.
Title FlaskBB: SSRF in get_image_info() via unrestricted avatar URL
Weaknesses CWE-918
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2026-07-21T20:34:23.536Z

Updated: 2026-07-22T14:50:37.123Z

Reserved: 2026-05-14T20:42:31.369Z

Link: CVE-2026-46556

cve-icon Vulnrichment

Updated: 2026-07-22T14:50:32.140Z

cve-icon NVD

No data.

cve-icon Redhat

No data.