Mautic vulnerable to SSRF via webhook function
### 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
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2025-9821US | — | — | ||
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… | ||||
references
External citations — patches, advisories, analysis.
- https://github.com/mautic/mauticPACKAGE
- https://github.com/mautic/mautic/commit/6084f6de4c88d1aeb5f6c73ea4fe1b09c98ea52bWEB
- https://github.com/mautic/mautic/commit/dc5bb1466c9a48fd34768dc8ff5888716b2916baWEB
- https://github.com/mautic/mautic/security/advisories/GHSA-hj6f-7hp7-xg69WEB
- https://nvd.nist.gov/vuln/detail/CVE-2025-9821ADVISORY
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