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Description

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.

PUBLISHED Reserved 2026-06-26 | Published 2026-06-29 | Updated 2026-07-14 | Assigner VulnCheck




MEDIUM: 5.3CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N

MEDIUM: 5.4CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

Problem types

Incorrect Authorization

Product status

Default status
unaffected

Any version before 3.4.0.60
affected

Credits

George Chen finder

References

github.com/its-a-feature/Mythic/releases/tag/v3.4.0.60 (Release Notes) release-notes

github.com/its-a-feature/Mythic/issues/565 (Researcher Disclosure) issue-tracking

github.com/...ommit/82648e8241b800a32e1882afc310e7316d98ebaa (Patch Commit) patch

www.vulncheck.com/...nting-import-automatic-webhook-endpoint third-party-advisory

cve.org (CVE-2026-57953)

nvd.nist.gov (CVE-2026-57953)

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