---
id: CVE-2026-88020
title: "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."
summary: "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."
severity: medium
cvss: 6.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
vendor: Autonomy Logic
product: OpenPLC Runtime
affected:
  - openplc_runtime 3
published: '2026-09-22'
updated: '2026-09-23'
sourceUpdated: '2026-09-23T19:42:48.540'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-88020'
references:
  - url: >-
      https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-265-09.json
    label: ics-cert@hq.dhs.gov
  - url: 'https://www.cisa.gov/news-events/ics-advisories/icsa-26-265-09'
    label: ics-cert@hq.dhs.gov
tags:
  - nvd
  - cve.org
epss: 0.00275
epssPercentile: 0.17816
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-23T15:05:37.231688Z'
ingestedAt: '2026-09-22T21:11:40.322Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.