EUVD-2026-71744
GHSA-rqwx-vcc8-2j32
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Webhook configuration requires a valid user account (PR:L); SSRF reaches internal systems outside the app boundary (S:C); only confidentiality is impacted.
Primary rating from Vendor (mitre).
CVSS VectorVendor: mitre
Lifecycle Timeline
5DescriptionCVE.org
An issue in Invoice Ninja v5.13.24 allows a remote attacker to obtain sensitive information via the StoreWebhookRequest.php, UpdateWebhookRequest.php, and WebhookSingle.php components
AnalysisAI
Server-side request forgery (SSRF) in Invoice Ninja v5.13.24 enables attackers to make the application server issue HTTP requests to internal and loopback network targets via unsanitized webhook destination URLs in StoreWebhookRequest.php, UpdateWebhookRequest.php, and WebhookSingle.php. By supplying RFC 1918 private addresses, loopback targets (127.0.0.1, ::1), or cloud metadata endpoints as webhook destinations, an attacker can probe internal services and retrieve sensitive responses that should be inaccessible from the internet. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the ability to create or modify a webhook in Invoice Ninja, which is normally accessible only to authenticated users or administrators. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The NVD CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N, score 7.5) likely overstates the risk on two metrics: PR:N assumes no authentication is needed, but Invoice Ninja webhook configuration is typically gated behind valid user credentials, making PR:L more appropriate; and S:U is conservative given that SSRF by definition reaches systems outside the application's intended security boundary, suggesting S:C. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | No vendor-released patch from Invoice Ninja has been identified at time of analysis; the sole technical reference is a third-party researcher Notion writeup at https://colorful-quill-4fe.notion.site/CVE-2026-71626-API-Webhook-SSRF-via-Internal-and-Loopback-Targets-382e5670300c80b6b4dac4c8216b5ff8. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory Invoice Ninja v5.13.24 instances and identify which have webhook features enabled. …
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External POC / Exploit Code
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