CVE-2026-1314

3D FlipBook – PDF Embedder, PDF Flipbook Viewer, Flipbook Image Gallery <= 1.16.17 - Missing Authorization to Unauthenticated Private/Draft Flipbook Data Exposure

2026-04-14 10:49

Strategic Overview

Status: Patched in 1.16.18
Affected Plugin: 3D FlipBook – PDF Embedder, PDF Flipbook Viewer, Flipbook Image Gallery
Affected Version: <= 1.16.17
CVSS: 5.3Medium
Weakness type: CWE-862 · Missing Authorization
CVE: CVE-2026-1314

View all 3D FlipBook – PDF Embedder, PDF Flipbook Viewer, Flipbook Image Gallery vulnerabilities

At a glance

CVE-2026-1314 is a medium-severity Missing Authorization vulnerability in the 3D FlipBook WordPress plugin, affecting versions <= 1.16.17. It carries a CVSS score of 5.3 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 1.16.18; sites on affected versions should update now. Disclosed April 2026, reported by Kai Aizen.

Vulnerability Overview

The 3D FlipBook – PDF Embedder, PDF Flipbook Viewer, Flipbook Image Gallery plugin for WordPress is vulnerable to unauthorized access of data due to a missing capability check on the send_post_pages_json() function in all versions up to, and including, 1.16.17. This makes it possible for unauthenticated attackers to retrieve flipbook page metadata for draft, private and password-protected flipbooks.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site, and no interaction from a victim user.

CWE-862: Missing Authorization

3D FlipBook <= 1.16.17 carries this weakness at send_post_pages_json(), and reaching it takes no account at all. A missing authorization check means a function is reachable by anyone who can reach the endpoint, because the code never asks whether the caller is allowed to perform the action.

Any user who can reach the endpoint gets to run an action reserved for higher-privileged roles, from reading protected data to changing settings or content. For 3D FlipBook the fix is 1.16.18: builds <= 1.16.17 are affected, anything from 1.16.18 onward is not.

Remediation

Update to version 1.16.18, or a newer patched version

How does WordSec protect against this?

This one needs no account at all, which puts it outside what login hardening can reach; WordSec's login security narrows the account-level paths around it, and the firewall is what inspects the request itself. None of that substitutes for the fix: 3D FlipBook 1.16.18 closes this, and updating the plugin is the step that ends it.

Login Security
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2026-1314 https://www.wordfence.com/threat-intel/vulnerabilities/id/d7e41753-2dbf-4afa-b61e-e617be2c4dc2 https://nvd.nist.gov/vuln/detail/CVE-2026-1314

Related records

Other vulnerabilities in 3D FlipBook – PDF Embedder, PDF Flipbook Viewer, Flipbook Image Gallery

CVSS Vector

5.3

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityLow
IntegrityNone
AvailabilityNone

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