CVE-2026-71250

4.3 Moyenne

Publiée le 05/08/2026 à 13:16 · Modifiée le 26/08/2026 à 19:13 · Analyse NVD reportée · Source : 309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c

Description

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.

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Produits concernés

firefly-iii

Scores CVSS

Version	Score	Source	Vecteur
3.1	4.3 Moyenne	309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c	`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N`

Faiblesses (CWE)

CWE-918

Références

https://github.com/firefly-iii/firefly-iii

Ailleurs

NVD
CVE.org
CIRCL Vulnerability-Lookup
CERT-FR
GitHub Advisories