CVE-2026-57953
Mythic < 3.4.0.60 - Unauthorized Automation Workflow Modification via eventing_import_automatic_webhook Endpoint
CVSS Score
5.4
EPSS Score
0.0%
EPSS Percentile
0th
Mythic before 3.4.0.60 contains an authorization bypass vulnerability that allows authenticated spectator-role users to perform unauthorized write operations by accessing the eventing_import_automatic_webhook endpoint registered under spectator-permitted middleware. Attackers with spectator role can exploit this misconfigured access control to create and delete automation workflows, making unauthorized modifications to operation automation configuration and EventGroups.
| CWE | CWE-863 |
| Vendor | its-a-feature |
| Product | mythic |
| Published | Jun 29, 2026 |
| Last Updated | Jun 29, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
Low
Affected Versions
its-a-feature / Mythic
0 < 3.4.0.60
References
github.com: https://github.com/its-a-feature/Mythic/releases/tag/v3.4.0.60 github.com: https://github.com/its-a-feature/Mythic/issues/565 github.com: https://github.com/its-a-feature/Mythic/commit/82648e8241b800a32e1882afc310e7316d98ebaa vulncheck.com: https://www.vulncheck.com/advisories/mythic-unauthorized-automation-workflow-modification-via-eventing-import-automatic-webhook-endpoint
Credits
George Chen