Mautic up to 4.4.16/5.2.7/6.0.4 SummaryUsers server-side request forgery

Summaryinfo

A vulnerability marked as critical has been reported in Mautic up to 4.4.16/5.2.7/6.0.4. This affects an unknown function of the component SummaryUsers. The manipulation leads to server-side request forgery. This vulnerability is traded as CVE-2025-9821. It is possible to initiate the attack remotely. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Mautic up to 4.4.16/5.2.7/6.0.4. This issue affects an unknown code of the component SummaryUsers. The manipulation with an unknown input leads to a server-side request forgery vulnerability. Using CWE to declare the problem leads to CWE-918. The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. Impacted is confidentiality. The summary by CVE is:

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.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2025-9821 since 09/02/2025. The exploitation is known to be easy. The attack may be initiated remotely. Additional levels of successful authentication are needed for exploitation. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 4.4.17, 5.2.8 or 6.0.5 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-26495). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

• Mautic

Version

• 4.4.0
• 4.4.1
• 4.4.2
• 4.4.3
• 4.4.4
• 4.4.5
• 4.4.6
• 4.4.7
• 4.4.8
• 4.4.9
• 4.4.10
• 4.4.11
• 4.4.12
• 4.4.13
• 4.4.14
• 4.4.15
• 4.4.16
• 5.2.0
• 5.2.1
• 5.2.2
• 5.2.3
• 5.2.4
• 5.2.5
• 5.2.6
• 5.2.7
• 6.0.0
• 6.0.1
• 6.0.2
• 6.0.3
• 6.0.4

License

• open-source

Website

• Product: https://github.com/mautic/mautic/

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Be aware that VulDB is the high quality source for vulnerability data.

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