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OpenAdvisories
Low · 2.7 CVE-2025-9821 EUVD-2025-26495GHSA-hj6f-7hp7-xg69

SSRF via webhook function

Published Sep 3, 2025 · Updated Sep 3, 2025 · Assigned by Mautic

Description

SummaryUsers with webhook permissions can conduct SSRF via webhooks. If they have permission to view the webhook logs, the (partial) request response is also disclosed

DetailsWhen sending webhooks, the destination is not validated, causing SSRF.

ImpactBypass of firewalls to interact with internal services.
See https://owasp.org/Top10/A10_2021-Server-Side_Request_Forgery_%28SSRF%29/  for more potential impact.

Resources https://cheatsheetseries.owasp.org/cheatsheets/Server_Side_Request_Forgery_Prevention_Cheat_Sheet.html  for more information on SSRF and its fix.

Affected products

VendorProductAffectedFixed
Mautic Mautic >= 4.4.0 – ≤ < 4.4.17, >= 5.0.0-alpha – ≤ < 5.2.8, >= 6.0.0-alpha – ≤ < 6.0.5 —

Affected packages

EcosystemPackageAffectedFixedRecord
Packagist mautic/core >= 4.4.0, < 4.4.17 4.4.17 GHSA-hj6f-7hp7-xg69
Packagist mautic/core >= 5.0.0-alpha, < 5.2.8 5.2.8 GHSA-hj6f-7hp7-xg69
Packagist mautic/core >= 6.0.0-alpha, < 6.0.5 6.0.5 GHSA-hj6f-7hp7-xg69

References