CVE-2026-86842 Real3D Flipbook Lite < 5.4 - Author+ Content Deletion and Stored XSS via Global Settings Overwrite
Authors can delete other users' content and inject stored XSS via global settings due to missing capability checks in the Real3D Flipbook plugin.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-86842?
CVE-2026-86842 is a medium-severity missing authorization vulnerability in Unknown Real3D Flipbook, published on 23 Sep 2026. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
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.
Weakness: CWE-862
Which versions are affected by CVE-2026-86842?
How do I fix CVE-2026-86842?
No fix has been published for CVE-2026-86842 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-2026-86842 being exploited?
There is no known exploitation of CVE-2026-86842 in the wild and no public exploit code.
Sources
Also known as GHSA-c2cv-7vq9-6xf7.