Auth bypass in Meta Box

CVE-2026-15248

The Meta Box WordPress plugin before 5.13.1 does not verify that a user is authorized to delete the supplied attachment before deleting it, allowing users with a low-privilege role such as Contributor to permanently delete arbitrary media attachments belonging to other users.

Vulnerability class: Broken Access Control

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:L.

EPSS exploit prediction

EPSS: 0.004 (31.4th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 31.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-15248: held from 0.004 to 0.004.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

  • Meta Box — versions 0

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-15248?
CVE-2026-15248 is a medium-severity vulnerability in Meta Box, classified under Missing Authorization. CVSS score: 5.5/10. Published 2026-08-02.
How severe is CVE-2026-15248?
Medium severity. CVSS v3 base score is 5.5 out of 10.