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VulnerabilityPublished

CVE-2026-4030: Database Backup for WordPress · Missing Authorization

Affects Database Backup for WordPressSource CVE Database V5

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Not known to be exploited · CVSS 8.1 High.

Data as of 30 Oct 2026, 06:59 UTC

CVSS 3.1 base score
8.1High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.4% chance of exploitation in 30 days – higher than 40% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 14 May 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
wpengineDatabase Backup for WordPressAffected
  • <=2.5.2
Fixed in–

AI-suggested

Until an official fix is released, administrators of WordPress Multisite environments using this plugin should consider disabling or removing the Database Backup for WordPress plugin or restricting access to mitigate unauthorized file read and deletion risks. Monitor vendor channels for updates and apply patches promptly once available.

Description

The Database Backup for WordPress plugin up to version 2.5.2 contains a missing authorization vulnerability that allows unauthenticated attackers to read and delete arbitrary files on the server. This issue arises from improper enforcement of authorization checks combined with a user-controlled backup directory parameter. Exploitation is limited to WordPress Multisite environments where the deprecated is_site_admin() function is present. The vulnerability can lead to sensitive information exposure and potential site takeover. There is currently no confirmed patch or official remediation available.

References

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