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CVE-2026-46556

FlaskBB: SSRF in get_image_info() via unrestricted avatar URL PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
flaskbb / flaskbbaffected < 2.2.1

CWE

CWE-918

References

ADP enrichment

CISA-ADP

No English description supplied.