Vulnerability · Published Apr 9, 2026 · Assigned by icscert
CVE-2026-35063Missing Authorization in OpenPLC_V3
High 8.7
In plain English
A high-severity missing authorization in OpenPLC_V3 from OpenPLC_V3. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 16% of all known vulnerabilities).
Severity (CVSS 4.0)8.7High
Exploit odds (30 days)0.2%top 84.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| OpenPLC_V3 | OpenPLC_V3 | All versions |
Weakness: CWE-862 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
References
- https://www.cisa.gov/news-events/ics-advisories/icsa-25-345-10 government-resource