Arbitrary file upload in Mathieu Chartier Wp-Advanced-Search

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 WP-Advanced-Search: from n/a through <= 3.3.9.4.

Vulnerability class: Unrestricted File Upload

EPSS: 0.005 (38.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.6 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:L.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2025-39538?
CVE-2025-39538 is a medium-severity vulnerability in Mathieu Chartier Wp-Advanced-Search, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 6.6/10. Published 2025-04-16.
How severe is CVE-2025-39538?
Medium severity. CVSS v3 base score is 6.6 out of 10.
Is CVE-2025-39538 known to be exploited?
3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.