Openplcproject: >> Openplc V3 Security Vulnerabilities
OpenPLC_V3 REST API endpoint checks for JWT presence but never verifies the caller's role. Any authenticated user with role=user can delete any other user, including administrators, by specifying their user ID or they can create new accounts with role=admin, escalating to full administrator access.
CVSS Score
8.7
EPSS Score
0.0
Published
2026-04-09
OpenPLC_V3 is vulnerable to a Plaintext Storage of a Password vulnerability that could allow an attacker to retrieve credentials and access sensitive information.
CVSS Score
9.2
EPSS Score
0.0
Published
2026-04-09
OpenPLC 3 through 9cd8f1b allows XSS via an SVG document as a profile picture.
CVSS Score
5.4
EPSS Score
0.004
Published
2024-06-28
Command Injection in Open PLC Webserver v3 allows remote attackers to execute arbitrary code via the "Hardware Layer Code Box" component on the "/hardware" page of the application.
CVSS Score
8.8
EPSS Score
0.849
Published
2021-08-03
A buffer overflow vulnerability was discovered in the OpenPLC controller, in the OpenPLC_v2 and OpenPLC_v3 versions. It occurs in the modbus.cpp mapUnusedIO() function, which can cause a runtime crash of the PLC or possibly have unspecified other impact.
CVSS Score
9.8
EPSS Score
0.005
Published
2019-04-22