CVE-2026-4030Disclosure

LOWCVSS 8.1 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD 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.

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0.0/ 10 priority

Sources & remediation

Other references

Weakness type (CWE)

CWE-862

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

1 mentions across 1 observed day

What's happening

Technical details provided in 1 signal
Disclosure: 1 classified signal
1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d

Signal classification1 categories

Disclosure

1100.0%

Referenced assets1 URL

By indicator

https://sec.kaitan.id/cves/CVE-2026-4030

Full discourse1 post

Kaitan ID Security@KaitanSecurity147d
Disclosure
⚠️ HIGH — CVE-2026-4030 The Database Backup for WordPress plugin for WordPress is vulnerable to unauthorized arbitrary file read and deletion i… CVSS 8.1 Full analysis → https://sec.kaitan.id/cves/CVE-2026-4030 #WordPress #CyberSecurity #InfoSec
Post summary
This post announces a newly disclosed high‑severity vulnerability (CVE‑2026‑4030) in the Database Backup WordPress plugin, providing limited technical details and a link for further analysis.
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