Vulnerability · Published Sep 22, 2026 · Assigned by icscert
CVE-2026-88020Improper Neutralization of Input During Web Page Generation in OpenPLC Runtime v3
Medium 6.1
In plain English
A medium-severity cross-site scripting in OpenPLC Runtime from Autonomy Logic. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 20% of all known vulnerabilities).
Severity (CVSS 3.1)6.1Medium
Exploit odds (30 days)0.3%top 79.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Autonomy Logic OpenPLC 3 is susceptible to an improper neutralization of input during web page generation vulnerability when the web interface attempts to route the program based on a query string parameter with no encoding.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Autonomy Logic | OpenPLC Runtime | 3 |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N