CVE-2025-12126

The Total Book Project <= 1.0 - Insecure Direct Object Reference to Authenticated (Contributor+) Book Manipulation

MEDIUM
5.4
CVSS Score
Published: November 11, 2025 at 03:30 AM UTC
Updated: October 7, 2026 at 09:10 PM UTC
1 product affected across 1 vendorThe Total Book Project

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Severity
MEDIUM5.4
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

The The Total Book Project plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 1.0 via several functions due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with Contributor-level access and above, to perform several actions like moving/deleting/creating chapters in books that do not belong to them.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v ≤ 1.0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.4MEDIUMWordfence
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-639

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