CVE-2025-54962

🔥 CVE-2025-54962 — Insecure File Upload in OpenPLC Runtime Webserver OpenPLC Runtime ≤ 2024-12-31 — Stored XSS, CSRF 📌 Summary I discovered a vulnerability in the OpenPLC Runtime webserver released version: 2024-12-31 that allows authenticated users to upload arbitrary files e.g., .html, .svg as...

OpenPLC_v3

OpenPLC Runtime version 3 Introduction OpenPLC is an open-source programmable logic controller based on easy-to-use software. Our focus is to provide a low-cost industrial solution for automation and research. OpenPLC has been used in many research papers as a framework for industrial cybersecuri...

CVE-2025-34226

CVE-2025-34226: Persistent DoS in OpenPLC Runtime Vulnerability Overview Field| Value ---|--- CVE ID| CVE-2025-34226 Affects| OpenPLC Runtime V3 Fixed in| commit 095ee09623dd229b64ad3a1db38a901a3772f6fc Severity| High CVSS 4.0| CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N 7.1...

OpenPLC_v3

OpenPLC Runtime version 3 ⚠️ This project has reached End of Life and is no longer maintained. It has been replaced by OpenPLC Runtime v4. Please visit the new repository for installation instructions, documentation, and support. OpenPLC is an open-source Programmable Logic Controller that is base...

CVE-2026-88020 Improper Neutralization of Input During Web Page Generation in OpenPLC Runtime v3

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...

CVE-2026-88020

Autonomy Logic OpenPLC Runtime v3 is susceptible to an improper neutralization of input during web page generation vulnerability. This occurs because the web interface fails to encode a query string parameter used for program routing. Successful exploitation could allow an attacker to hijack sess...

CVE-2026-88020 Improper Neutralization of Input During Web Page Generation in OpenPLC Runtime v3

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...

OpenPLC Runtime v3

ADVISORY SUMMARY Successful exploitation of this vulnerability could allow an attacker to hijack session cookies and issue state-changing requests as an operator which would allow the attacker to control the programmable logic controller and the physical processes it drives. 2. RECOMMENDED...

CVE-2026-71268

OpenPLC Runtime v3's compileprogram function webserver/openplc.py parses directives from uploaded Structured Text .st program files and writes the referenced content to with no validation that filepath stays within the ./core directory. A path-validation function, validatefilepath, exists elsewhe...

CVE-2026-71268

OpenPLC Runtime v3 is affected by a path traversal in compile_program() (webserver/openplc.py): it processes directives of the form (FILE:path content ) and writes to os.path.join('./core', file_path) without validating that file_path stays under ./core. A crafted ST file like (FILE:../../../etc/...

CVE-2026-71268

OpenPLC Runtime v3's compileprogram function webserver/openplc.py parses directives from uploaded Structured Text .st program files and writes the referenced content to with no validation that filepath stays within the ./core directory. A path-validation function, validatefilepath, exists elsewhe...

CVE-2026-71268 OpenPLC Runtime v3 Path Traversal in Structured Text FILE Directive Leading to Arbitrary File Write

OpenPLC Runtime v3's compileprogram function webserver/openplc.py parses directives from uploaded Structured Text .st program files and writes the referenced content to with no validation that filepath stays within the ./core directory. A path-validation function, validatefilepath, exists elsewhe...

PT-2026-68141

Name of the Vulnerable Software and Affected Versions OpenPLC Runtime version 3 Description The compile program function in webserver/openplc.py fails to validate the file path variable when parsing FILE:path content directives from uploaded Structured Text .st program files. This allows an...

CVE-2026-71268: Improper Limitation of a Pathname to a Restricted Directory

OpenPLC Runtime v3's compileprogram function webserver/openplc.py parses directives from uploaded Structured Text .st program files and writes the referenced content to with no validation that filepath stays within the ./core directory. A path-validation function, validatefilepath, exists elsewhe...

CVE-2026-14480

OpenPLC Runtime v3 contains an authenticated arbitrary file write vulnerability in the legacy web UI program‑upload workflow. The application stores an attacker‑supplied filename progfile directly into the Programs.File database field and later uses this value as the destination path for an...

CVE-2026-14480

OpenPLC Runtime v3 contains an authenticated arbitrary file write vulnerability in the legacy web UI program‑upload workflow. The application stores an attacker‑supplied filename progfile directly into the Programs.File database field and later uses this value as the destination path for an...

CVE-2026-14480 OpenPLC v3 External Control of File Name or Path

OpenPLC Runtime v3 contains an authenticated arbitrary file write vulnerability in the legacy web UI program‑upload workflow. The application stores an attacker‑supplied filename progfile directly into the Programs.File database field and later uses this value as the destination path for an...

CVE-2026-14480: External Control of File Name or Path

OpenPLC Runtime v3 contains an authenticated arbitrary file write vulnerability in the legacy web UI program‑upload workflow. The application stores an attacker‑supplied filename progfile directly into the Programs.File database field and later uses this value as the destination path for an...

OpenPLC Runtime Version 3 security vulnerabilities

OpenPLC Runtime version 3 is a programmable logic controller developed by Thiago Alves. There is a security vulnerability in OpenPLC Runtime version 3, which stems from the use of unsafe default values during resource initialization. This vulnerability could allow attackers to access the system...

OpenPLC Runtime Version 3 security vulnerabilities

OpenPLC Runtime version 3 is a programmable logic controller developed by Thiago Alves. There is a security vulnerability in OpenPLC Runtime version 3. This vulnerability stems from the REST API endpoints only checking the existence of JWTs without verifying the caller’s role. This could allow...