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CVE Vulnerability Details :
CVE-2026-46556
PUBLISHED
More InfoOfficial Page
Assigner-GitHub_M
Assigner Org ID-a0819718-46f1-4df5-94e2-005712e83aaa
View Known Exploited Vulnerability (KEV) details
Published At-21 Jul, 2026 | 20:34
Updated At-22 Jul, 2026 | 14:50
Rejected At-
▼CVE Numbering Authority (CNA)
FlaskBB: SSRF in get_image_info() via unrestricted avatar URL

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 Products
Vendor
flaskbb
Product
flaskbb
Versions
Affected
  • < 2.2.1
Problem Types
TypeCWE IDDescription
CWECWE-918CWE-918: Server-Side Request Forgery (SSRF)
Type: CWE
CWE ID: CWE-918
Description: CWE-918: Server-Side Request Forgery (SSRF)
Metrics
VersionBase scoreBase severityVector
3.16.5MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Version: 3.1
Base score: 6.5
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/flaskbb/flaskbb/security/advisories/GHSA-xq32-9g7q-7297
x_refsource_CONFIRM
https://github.com/flaskbb/flaskbb/commit/e87e585f54bbe36694e91d52ee9b2d2e65dd4ab5
x_refsource_MISC
Hyperlink: https://github.com/flaskbb/flaskbb/security/advisories/GHSA-xq32-9g7q-7297
Resource:
x_refsource_CONFIRM
Hyperlink: https://github.com/flaskbb/flaskbb/commit/e87e585f54bbe36694e91d52ee9b2d2e65dd4ab5
Resource:
x_refsource_MISC
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/flaskbb/flaskbb/security/advisories/GHSA-xq32-9g7q-7297
exploit
Hyperlink: https://github.com/flaskbb/flaskbb/security/advisories/GHSA-xq32-9g7q-7297
Resource:
exploit
Details not found