CVE-2025-12126 The Total Book Project <= 1.0 - Insecure Direct Object Reference to Authenticated (Contributor+) Book Manipulation

Medium 5.4 Published Updated

Authenticated contributors can manipulate books belonging to other users due to missing authorization checks in the Total Book Project plugin.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-12126?

CVE-2025-12126 is a medium-severity missing authorization vulnerability in ryanmoyer The Total Book Project, published on 11 Nov 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official 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.

Weakness: CWE-639

Which versions are affected by CVE-2025-12126?

How do I fix CVE-2025-12126?

No fix has been published for CVE-2025-12126 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2025-12126 being exploited?

There is no known exploitation of CVE-2025-12126 in the wild and no public exploit code.

Sources

Also known as GHSA-862x-3jqq-f754.

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