What is CVE-2026-104307?

CVE-2026-104307 is a medium-severity vulnerability in Backupwordpress, classified under External Control of File Name or Path. CVSS score: 5.4/10. Published 2026-11-08.

How severe is CVE-2026-104307?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Vulnerability in Backupwordpress

CVE-2026-104307

The BackUpWordPress plugin before 3.15 does not perform a capability or nonce check on an AJAX action that cleans up its backup directory, allowing any authenticated user (Subscriber and above) to delete the BackUpWordPress plugin before 3.15's backup protection and working files, removing download protection from stored backups and disrupting in-progress backups.

Published 2026-11-08 · last modified 2026-11-08.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Backupwordpress

Weakness classification (CWE)

CWE-73 — External Control of File Name or Path

References

wpscan.com/vulnerability/fdd1c029-f055-40c0-9c7f-a0a3822304a9/ (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-104307?: CVE-2026-104307 is a medium-severity vulnerability in Backupwordpress, classified under External Control of File Name or Path. CVSS score: 5.4/10. Published 2026-11-08.
How severe is CVE-2026-104307?: Medium severity. CVSS v3 base score is 5.4 out of 10.