{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-71250", "assignerOrgId": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c", "state": "PUBLISHED", "assignerShortName": "TuranSec", "dateReserved": "2026-08-05T10:53:53.177Z", "datePublished": "2026-08-05T10:57:08.628Z", "dateUpdated": "2026-08-05T10:57:08.628Z"}, "containers": {"cna": {"title": "Firefly III: Webhook URL Validation Explicitly Allows Loopback and Is Bypassable via DNS Rebinding", "descriptions": [{"lang": "en", "value": "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. Additionally, the validator resolves the target hostname once via gethostbyname() at validation time, but the actual outbound request (StandardWebhookSender.php, via Guzzle) re-resolves the hostname independently at send time, allowing a DNS-rebinding attacker to pass validation against a public IP and have the real request delivered to a private or internal address. The webhook response body is only written to a server-side debug log, not returned to the triggering user, so this is a blind SSRF primitive rather than one with direct response read-back."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-918 Server-Side Request Forgery (SSRF)", "cweId": "CWE-918", "type": "CWE"}]}], "affected": [{"vendor": "firefly-iii", "product": "firefly-iii", "programFiles": ["app/Rules/Webhook/IsValidWebhookUrl.php", "app/Support/Webhook/StandardWebhookSender.php"], "versions": [{"version": "0", "status": "affected"}], "defaultStatus": "unknown"}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N", "baseScore": 4.3, "baseSeverity": "MEDIUM"}}], "references": [{"url": "https://github.com/firefly-iii/firefly-iii"}], "credits": [{"lang": "en", "value": "Bobur Abdugafforov", "type": "finder"}], "providerMetadata": {"orgId": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c", "shortName": "TuranSec", "dateUpdated": "2026-08-05T10:57:08.628Z"}}}}

{}

{}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "0"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "firefly-iii", "source": "cna", "vendor": "firefly-iii"}, "product": "firefly_iii", "vendor": "firefly-iii"}], "created": "2026-08-05T12:30:12.305254+00:00", "updated": "2026-08-05T12:30:12.416656+00:00", "vendors": ["firefly-iii", "firefly-iii$PRODUCT$firefly_iii"]}