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TI-2026-65291 Aliases CVE-2026-102245GHSA-6hf7-jgwh-5jh8

MODSetter SurfSense circleback Endpoint circleback_webhook_route.py missing authentication

Priority HIGH 70CWE-287Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
Low · Low · Low
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-287.

Summary

A weakness has been identified in MODSetter SurfSense up to 2.0.3. The affected element is an unknown function of the file surfsense_backend/app/routes/circleback_webhook_route.py of the component circleback Endpoint. Executing a manipulation can lead to missing authentication. The attack can be launched remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00385 32nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MODSetterSurfSense2.0.0; 2.0.1; 2.0.2; 2.0.3—No fix listedCNA
  • SurfSense VendorMODSetter Affected 2.0.0; 2.0.1; 2.0.2; 2.0.3 Fixed in — No fix listed CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:2.3:a:modsetter:surfsense:*:*:*:*:*:*:*:*——MODSetter
  • cpe:2.3:a:modsetter:surfsense:*:*:*:*:*:*:*:* Versions — — ·MODSetter

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-102245
  2. 2026-10-03 Alias added: GHSA-6hf7-jgwh-5jh8

References

Exploit 1

  • TI-2026-65290 MODSetter SurfSense Document Export Feature editor_routes.py server-side request forgery CVSS 4.0MEDIUM 5.3
  • TI-2026-65289 MODSetter SurfSense MCP Connector Integration test command injection CVSS 4.0MEDIUM 5.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences