CVE-2026-35063 — HIGH (8.8)

Vulnerability Description

OpenPLC_V3 REST API endpoint checks for JWT presence but never verifies the caller's role. Any authenticated user with role=user can delete any other user, including administrators, by specifying their user ID or they can create new accounts with role=admin, escalating to full administrator access.

CVSS Score

8.8

HIGH

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Openplcproject	Openplc V3 Firmware	-
Openplcproject	Openplc V3	-

Related Weaknesses (CWE)

CWE-862

References

https://www.cisa.gov/news-events/ics-advisories/icsa-25-345-10Third Party AdvisoryUS Government Resource

FAQ

What is CVE-2026-35063?

CVE-2026-35063 is a vulnerability with a CVSS score of 8.8 (HIGH). OpenPLC_V3 REST API endpoint checks for JWT presence but never verifies the caller's role. Any authenticated user with role=user can delete any other user, including administrators, by specifying thei...

How severe is CVE-2026-35063?

CVE-2026-35063 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-35063?

Check the references section above for vendor advisories and patch information. Affected products include: Openplcproject Openplc V3 Firmware, Openplcproject Openplc V3.