CVE-2025-9821
Mautic vulnerable to SSRF via webhook function
Description
### Summary Users with webhook permissions can conduct SSRF via webhooks. If they have permission to view the webhook logs, the (partial) request response is also disclosed ### Details When sending webhooks, the destination is not validated, causing SSRF. ### Impact Bypass 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
How to fix CVE-2025-9821
To remediate CVE-2025-9821, upgrade the affected package to a fixed version below.
- —upgrade to 4.4.17 or later
Is CVE-2025-9821 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- >= 4.4.0, < 4.4.17
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | LOW2.7 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N |