What is CVE-2025-11521?

CVE-2025-11521 is a high-severity vulnerability in Astrasecuritysuite Astra Security Suite – Firewall & Malware Scan, classified under Improper Authorization. CVSS score: 8.1/10. Published 2025-11-11.

How severe is CVE-2025-11521?

High severity. CVSS v3 base score is 8.1 out of 10.

Auth bypass in Astrasecuritysuite Astra Security Suite – Firewall & Malware Scan

CVE-2025-11521

The Astra Security Suite – Firewall & Malware Scan plugin for WordPress is vulnerable to arbitrary file uploads due to insufficient validation of remote URLs for zip downloads and an easily guessable key in all versions up to, and including, 0.2. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.

EPSS: 0.005 (38.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Astrasecuritysuite Astra Security Suite – Firewall & Malware Scan — versions 0

Weakness classification (CWE)

CWE-285 — Improper Authorization

References

Frequently asked questions

What is CVE-2025-11521?: CVE-2025-11521 is a high-severity vulnerability in Astrasecuritysuite Astra Security Suite – Firewall & Malware Scan, classified under Improper Authorization. CVSS score: 8.1/10. Published 2025-11-11.
How severe is CVE-2025-11521?: High severity. CVSS v3 base score is 8.1 out of 10.