MEDIUMVulnerability
CVE-2026-71250
Firefly III's webhook URL validator (IsValidWebhookUrl.php) filters most private/reserved IPv4 ranges but contains an explicit early-return that allows any resolved address in 127.0.0.0/8, permitting an authenticated user (with webhooks enabled, which is off by default) to configure a webhook targeting loopback services on the server.
Properties
- severity
- MEDIUM
- score
- 4.3
- cve_id
- CVE-2026-71250
- vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
- published_at
- 2026-08-05T11:16:28.110
- last_modified
- 2026-08-26T17:13:24.800
Related Entities (2)
HAS_WEAKNESS (1)
→[Weakness]Server-Side Request Forgery (SSRF)
DESCRIBED_BY (1)
→[Source]NVD
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