What is CVE-2025-54962?

CVE-2025-54962 is a medium-severity vulnerability in Thiagoralves Openplc_v3, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 6.4/10. Published 2025-08-04.

How severe is CVE-2025-54962?

Medium severity. CVSS v3 base score is 6.4 out of 10.

Is CVE-2025-54962 known to be exploited?

3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Arbitrary file upload in Thiagoralves Openplc_v3

CVE-2025-54962

/edit-user in webserver in OpenPLC Runtime 3 through 9cd8f1b allows authenticated users to upload arbitrary files (such as .html or .svg), and these are then publicly accessible under the /static URI.

Vulnerability class: Unrestricted File Upload

EPSS: 0.002 (14.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N.

Affected products

Thiagoralves Openplc_v3 — versions 0

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2025-54962?: CVE-2025-54962 is a medium-severity vulnerability in Thiagoralves Openplc_v3, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 6.4/10. Published 2025-08-04.
How severe is CVE-2025-54962?: Medium severity. CVSS v3 base score is 6.4 out of 10.
Is CVE-2025-54962 known to be exploited?: 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.