Arbitrary file upload in Waveplayer

CVE-2025-12057

The WavePlayer WordPress plugin before 3.8.0 does not have authorization in an AJAX action as well as does not validate the file to be copied locally, allowing unauthenticated users to upload arbitrary file on the server and lead to RCE

Vulnerability class: Unrestricted File Upload

Published · last modified .

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.006 (45.2th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 45.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-12057: held from 0.006 to 0.006.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

  • Waveplayer — versions 0

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2025-12057?
CVE-2025-12057 is a critical-severity vulnerability in Waveplayer, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2025-11-19.
How severe is CVE-2025-12057?
Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2025-12057 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.