Auth bypass in Openplcproject Openplc_v3
CVE-2026-35063
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 accoun…
Vulnerability class: Broken Access Control
EPSS: 0.002 (15.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Openplcproject Openplc_v3
- Openplcproject Openplc_v3_firmware
- Openplc_v3 — versions All versions
Weakness classification (CWE)
References
- ics-cert@hq.dhs.gov (US Government Resource, Third Party Advisory, government-resource)
Frequently asked questions
- What is CVE-2026-35063?
- CVE-2026-35063 is a high-severity vulnerability in Openplcproject Openplc_v3, classified under Missing Authorization. CVSS score: 8.8/10. Published 2026-04-09.
- How severe is CVE-2026-35063?
- High severity. CVSS v3 base score is 8.8 out of 10.