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Findings

Vulnerability · CVE-2025-39538

Unrestricted Upload of File with Dangerous Type vulnerability in Mathieu Chartier WP-Advanced-Search wp-advanced-search allows Upload a Web Shell to a Web Server.This issue affects

Published Apr 16, 2025 · corrected/updated Apr 28, 2026 · Mathieu Chartier WP-Advanced-Search · evidence confidence high

Unrestricted Upload of File with Dangerous Type vulnerability in Mathieu Chartier WP-Advanced-Search wp-advanced-search allows Upload a Web Shell to a Web Server.This issue affects WP-Advanced-Search: from n/a through <= 3.3.9.4.

Grounded briefings

Catalog interpretations for three audiences. Each brief cites ingested metadata and the original advisories below. They are not independent research and they do not invent exploit steps.

Executive

CVE-2025-39538 is a medium public vulnerability record for Mathieu Chartier WP-Advanced-Search. It is not currently listed in the CISA Known Exploited catalog. Check the linked vendor or CERT advisories for patch status. This summary is a catalog interpretation of the ingested metadata and cites the original advisories below.

System administrator

Identify whether Mathieu Chartier WP-Advanced-Search is in your estate, then compare installed versions with the affected ranges. Affected packages or ranges on record: Mathieu Chartier WP-Advanced-Search 0 ≤3.3.9.4 (0 ≤3.3.9.4). Check the linked vendor or CERT advisories for patch status. Prefer the vendor or distribution advisory linked in Sources before changing production systems. This is a catalog interpretation, not a runbook.

Security analyst

Signals on file: CVSS 6.6, EPSS 49.0%. It is not currently listed in the CISA Known Exploited catalog. Sources contributing to this record: cve_org, euvd. Public exploit references, when present, are outbound links only and are not proof of active exploitation. This is a catalog interpretation of stored metadata.

Exploitation and remediation

  • Exploitation evidence

    Not listed as known exploited in CISA KEV. Not in CISA KEV or VulnCheck KEV.

  • Patch and remediation

    No required-action text is stored yet. Use the vendor or CERT links in Sources for patch availability.

  • Safe detection guidance

    Compare installed versions with the affected ranges below and verify the advisory from the original publisher. This site stores metadata and outbound links only; it does not ship exploit code or proof-of-concept payloads.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Apr 16, 2025 · EUVD

    Detected

    Unrestricted Upload of File with Dangerous Type vulnerability in Mathieu Chartier WP-Advanced-Search wp-advanced-search allows Upload a Web Shell to a Web Server.This issue affects WP-Advanced-Search: from n/a through <= 3.3.9.4.

  2. Apr 28, 2026 · EUVD

    Updated

    Unrestricted Upload of File with Dangerous Type vulnerability in Mathieu Chartier WP-Advanced-Search wp-advanced-search allows Upload a Web Shell to a Web Server.This issue affects WP-Advanced-Search: from n/a through <= 3.3.9.4.

Affected

  • vendor Mathieu Chartier WP-Advanced-Search 0 ≤3.3.9.40 ≤3.3.9.4

Sources

  • CVE.orgVulnerability recordCVE-2025-39538

    Official CVE identifier

    cve.org
  • EUVDVulnerability recordEUVD-2025-11333

    Unrestricted Upload of File with Dangerous Type vulnerability in Mathieu Chartier WP-Advanced-Search wp-advanced-search allows Upload a Web Shell to a Web Server.This issue affects WP-Advanced-Search: from n/a through <= 3.3.9.4.

    euvd.enisa.europa.eu

References