RCE in Webgjc Web Robot
CVE-2026-90492
A security vulnerability has been detected in webgjc web_robot 2.4.0/2.5.0/2.8.0. The affected element is the function controller_listen/controller_recover of the file py/web.py. The manipulation of the argument case_name leads to os command injection. It is possible to initiate the attack remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.024 (84.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 84.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.024 · newest: 0.024 · change: 0.000
Affected products
- Webgjc Web Robot — versions 2.4.0, 2.5.0, 2.8.0
Weakness classification (CWE)
References
- vuldb.com/vuln/403080 (technical-description, vdb-entry)
- vuldb.com/vuln/403080/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-90492 (third-party-advisory)
- vuldb.com/submit/892352 (third-party-advisory)
Frequently asked questions
- What is CVE-2026-90492?
- CVE-2026-90492 is a medium-severity vulnerability in Webgjc Web Robot, classified under Command Injection. CVSS score: 6.3/10. Published 2026-09-13.
- How severe is CVE-2026-90492?
- Medium severity. CVSS v3 base score is 6.3 out of 10.