---
title: "OpenPLC: known exploited vulnerabilities"
url: https://erroneo.us/security/vendor/openplc/
description: "Every OpenPLC vulnerability in CISA's Known Exploited Vulnerabilities catalog since October 2023 (2), newest first, with due dates and fixes."
type: vendor
section: "Security Digest"
date_modified: 2025-12-03
publisher: erroneo.us
author: erroneo.us Security Desk
license: All rights reserved. Quote with attribution and a link.
---

# OpenPLC: known exploited vulnerabilities

- 2025-12-03 [CVE-2021-26828](https://erroneo.us/security/cve/CVE-2021-26828/index.md) OpenPLC ScadaBR: OpenPLC ScadaBR Unrestricted Upload of File with Dangerous Type Vulnerability (due 2025-12-24; ransomware: Unknown)
- 2025-11-28 [CVE-2021-26829](https://erroneo.us/security/cve/CVE-2021-26829/index.md) OpenPLC ScadaBR: OpenPLC ScadaBR Cross-site Scripting Vulnerability (due 2025-12-19; ransomware: Unknown)

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Source page: https://erroneo.us/security/vendor/openplc/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt