CVE-2026-6847 | THREATINT

Description

Remote Code Execution vulnerability exists in ThemisNETPanel due to missing authentication for a critical file upload function. The application exposes an endpoint that allows unauthenticated attackers to upload arbitrary PHP files by providing a base64-encoded payload and to execute arbitrary code on the underlying server. This issue has been fixed by a patch released in April 2026.

PUBLISHED Reserved 2026-04-22 | Published 2026-07-13 | Updated 2026-07-14 | Assigner CERT-PL

CRITICAL: 9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L

Problem types

CWE-306 Missing Authentication for Critical Function

Product status

Default status

unaffected

Any version before 04.2026

affected

Credits

Kamil Szczurowski finder

Robert Kruczek finder

References

cert.pl/posts/2026/07/CVE-2026-6847/ third-party-advisory

cve.org (CVE-2026-6847)

nvd.nist.gov (CVE-2026-6847)

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