Auth bypass in Its-A-Feature Mythic
CVE-2026-57952
Mythic before 3.4.0.60 contains an authorization bypass vulnerability in four REST endpoints (c2profile_config_check_webhook, c2profile_redirect_rules_webhook, c2profile_get_ioc_webhook, c2profile_sample_message_webhook) that fail to verify payload ownership. An operator in one operation can invoke these endpoints with a known payload UUID from another operation to access that operation's C2 profile configuration including encryption keys and callback parameters.
Vulnerability class: Broken Access Control
EPSS: 0.002 (6.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Its-a-feature Mythic — versions 0
Weakness classification (CWE)
References
- disclosure@vulncheck.com (Patch, patch)
- disclosure@vulncheck.com (issue-tracking, Issue Tracking)
- disclosure@vulncheck.com (release-notes, Release Notes)
- disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-57952?
- CVE-2026-57952 is a medium-severity vulnerability in Its-A-Feature Mythic, classified under Missing Authorization. CVSS score: 5.3/10. Published 2026-06-29.
- How severe is CVE-2026-57952?
- Medium severity. CVSS v3 base score is 5.3 out of 10.