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CVE-2023-5209 Bookly < 22.5 - Admin+ Stored XSS

Medium 4.8 Published Updated

Admins can inject malicious scripts via unsanitized settings in the Bookly plugin, enabling stored XSS attacks in multisite environments.

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-2023-5209?

CVE-2023-5209 is a medium-severity cross-site scripting vulnerability in Unknown WordPress Online Booking and Scheduling Plugin, published on 27 Nov 2023. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official description

The WordPress Online Booking and Scheduling Plugin WordPress plugin before 22.5 does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup)

Weakness: CWE-79

Which versions are affected by CVE-2023-5209?

It affects 1 product.

Products include Booking-Wp-Plugin Bookly.

How do I fix CVE-2023-5209?

No fix has been published for CVE-2023-5209 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2023-5209 being exploited?

There is no known exploitation of CVE-2023-5209 in the wild and no public exploit code.

Sources

Also known as GHSA-hgwf-985j-mh3j.

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