CVE-2026-9557

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Summary

CVECVE-2026-9557
StatePUBLISHED
AssignerMautic
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-29 11:16:17 UTC
Updated2026-05-29 15:39:34 UTC
DescriptionA Server-Side Request Forgery (SSRF) vulnerability exists in Mautic's Focus component. Due to insufficient validation of user-supplied URLs, an authenticated user can trigger outbound HTTP requests from the hosting server, enabling internal network reconnaissance or forcing requests to arbitrary internal or external destinations.

Risk And Classification

Primary CVSS: v3.1 6.4 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Problem Types: CWE-918 | CWE-918 CWE-918 Server-Side Request Forgery (SSRF)

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary6.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
3.1CNACVSS6.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

References

ReferenceSourceLinkTags
github.com/mautic/mautic/security/advisories/GHSA-jmv8-8j9j-rcpc [email protected] github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Mateus (@r1beirin) (en)

CNA: Nguyen Huy Vu Dung (@dungNHVhust) (en)

CNA: Patryk Gruszka (@patrykgruszka) (en)

CNA: John Linhart (@escopecz) (en)

CNA: Leuchtfeuer Digital Marketing (@Leuchtfeuer) (en)

Additional Advisory Data

Workarounds

CNA: There are no official workarounds. To completely mitigate the exposure without upgrading, disabling or limiting external network access from the Mautic web server to internal-only subnets and local hosts is recommended.

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