Is CVE-2026-4030 actively exploited?

No active exploitation of CVE-2026-4030 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-4030 be exploited remotely?

Yes. CVE-2026-4030 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-4030?

CVE-2026-4030 has a CVSS score of 8.1 (HIGH).

HOME VULNERABILITIESCVE-2026-4030

HIGH

CVE-2026-4030

CWE-862Published: May 14, 2026· Updated: May 14, 2026

8.1

CVSS v3.1

EPSS:0.14%probability of exploitation in 30 daysPercentile:34.4th

Official Description

The Database Backup for WordPress plugin for WordPress is vulnerable to unauthorized arbitrary file read and deletion in all versions up to, and including, 2.5.2. This is due to the plugin not properly enforcing the return value of its authorization check combined with a user-controlled backup directory parameter. This makes it possible for unauthenticated attackers to read and delete arbitrary files on the server, leading to Sensitive Information Exposure and potential site takeover. Note: This vulnerability is only exploitable in WordPress Multisite environments where the deprecated is_site_admin() function exists.

NVD Source

Technical Analysis

CVE-2026-4030 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.1.