CVE-2026-119764highCWE-79

CVE-2026-119764: high-severity vulnerability in its-a-feature Mythic

Mythic 3.2.16 through 3.4.0.61 Stored XSS via Agent-Downloaded File Preview

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21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 7.4epss 0.3%
Mythic 3.2.16 through 3.4.0.61 contains a stored cross-site scripting vulnerability that allows attackers controlling target endpoint files to run JavaScript in the Mythic UI origin by planting HTML in .pdf-named files. When an operator downloads the file and clicks Preview Media, content-sniffed HTML from /direct/view renders same-origin, stealing localStorage JWTs for full GraphQL and REST access.
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Affected products
its-a-feature · Mythic
Related CVEs — its-a-feature Mythic

In the same product, most dangerous first.

CVE-2026-57953MEDIUMMythic < 3.4.0.60 - Unauthorized Automation Workflow Modification via eventing_import_automatic_webhook EndpointEPSS 0.4%CVE-2026-57951HIGHMythic < 3.4.0.60 - Broken Permission Filter in payload_build_step TableEPSS 0.4%CVE-2026-57952MEDIUMMythic < 3.4.0.60 - Unauthorized C2 Profile Configuration Access via Unverified Payload UUIDEPSS 0.3%