CVE-2025-9821 Details
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.
A server-side request forgery (SSRF) vulnerability has been identified in Mautic's webhook functionality, affecting versions 4.4.0 prior to 4.4.17, 5.0.0-alpha prior to 5.2.8, and 6.0.0-alpha prior to 6.0.5. This vulnerability allows users with webhook permissions to send requests to internal services by exploiting unvalidated webhook destinations. Additionally, if these users can access webhook logs, they may receive partial responses from the requests, potentially disclosing sensitive information.
Users can update to Mautic versions 4.4.17, 5.2.8, or 6.0.5 to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Sep 3, 2025CISA-ADP
Assessed Sep 3, 2025References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/mautic/mautic/security/advisories/GHSA-hj6f-7hp7-xg69 | [email protected] | AdvisoryRemedyVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-918 | Server-Side Request Forgery (SSRF) | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Mautic | >= 4.4.0, < 4.4.17 (semver) >= 5.0.0-alpha, < 5.2.8 (semver) >= 6.0.0-alpha, < 6.0.5 (semver) |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Sep 3, 2025 | New CVE Received | [email protected] |