CVE-2025-12057Known exploitationPublic exploitNetwork attack vector

Unauthenticated RCE via unvalidated AJAX file copy

Published Nov 19, 2025 · Updated Nov 19, 2025

Arbitrary file upload in WavePlayer before 3.8.0 allows remote attackers to execute server-side code through an unauthenticated AJAX action. The create_local_copy action accepts an attacker-controlled URL, fetches its contents, and stores the result in a web-accessible uploads path without validating the file type. No account is required because a usable nonce is exposed on public pages; placing a PHP payload in the returned path grants code execution in the web server context.

CVSS severity9.8
Critical
EPSS probability0.57%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Arbitrary file upload in WavePlayer before 3.8.0 allows remote attackers to execute server-side code through an unauthenticated AJAX action. The create_local_copy action accepts an attacker-controlled URL, fetches its contents, and stores the result in a web-accessible uploads path without validating the file type. No account is required because a usable nonce is exposed on public pages; placing a PHP payload in the returned path grants code execution in the web server context.

The record

CVE
CVE-2025-12057
Published
Nov 19, 2025
Updated
Nov 19, 2025
Vendor
Luigi Pulcini
Product
WavePlayer
Classifications
CWE-434, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 19, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 19, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <3.8.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Luigi Pulcini · WavePlayerversion=0 <3.8.0

Published CVSS scores

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationReported
Public exploitPublished

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Reported exploitation

Technologies

Your stack

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Your stack

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