What is CVE-2026-86842?

CVE-2026-86842 is a medium-severity vulnerability in Real3d Flipbook, classified under Missing Authorization. CVSS score: 6.8/10. Published 2026-09-23.

How severe is CVE-2026-86842?

Medium severity. CVSS v3 base score is 6.8 out of 10.

Auth bypass in Real3d Flipbook

CVE-2026-86842

The Real3D Flipbook WordPress plugin before 5.4 does not perform capability checks on several of its authenticated flipbook management actions, allowing users with Author-level access and above to delete other users' flipbook content and overwrite administrator-only global settings, which can be leveraged to store JavaScript that executes in the context of any visitor or administrator viewing the site.

Vulnerability class: Broken Access Control

Published 2026-09-23 · last modified 2026-09-23.

CVSS v3 metric

CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.002 (10.8th percentile), scored 2026-09-24.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 11th percentile — 10.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

The 30-day trend appears once there are two daily scores.

Affected products

Real3d Flipbook

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

wpscan.com/vulnerability/b98713d1-e618-4728-baea-f26015e24b60/ (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-86842?: CVE-2026-86842 is a medium-severity vulnerability in Real3d Flipbook, classified under Missing Authorization. CVSS score: 6.8/10. Published 2026-09-23.
How severe is CVE-2026-86842?: Medium severity. CVSS v3 base score is 6.8 out of 10.