CVE-2022-3891 WP FullCalendar < 1.5 - Unauthenticated Arbitrary Post Access

Medium 5.3 Published Updated

Unauthenticated attackers can access content of arbitrary posts, including drafts and private ones, via an AJAX action in the WP FullCalendar plugin.

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

What is CVE-2022-3891?

CVE-2022-3891 is a medium-severity missing authorization vulnerability in Unknown WP FullCalendar, published on 13 Feb 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The WP FullCalendar WordPress plugin before 1.5 does not ensure that the post retrieved via an AJAX action is public and can be accessed by the user making the request, allowing unauthenticated attackers to get the content of arbitrary posts, including draft/private as well as password-protected ones.

Which versions are affected by CVE-2022-3891?

It affects 1 product.

Products include Pixelite Wp Fullcalendar.

How do I fix CVE-2022-3891?

No fix has been published for CVE-2022-3891 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-2022-3891 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-3891 exists.

Sources

Also known as GHSA-ghxw-rgqv-5cp6.

Is CVE-2022-3891 in your software?

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