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CVE-2021-24930 Bookly < 20.3.1 - Staff Member Stored Cross-Site Scripting

Medium 5.4 Published Updated

An attacker can inject malicious scripts via the Staff Full Name field in the Bookly plugin, leading to stored cross-site scripting attacks against users.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2021-24930?

CVE-2021-24930 is a medium-severity cross-site scripting vulnerability in Unknown WordPress Online Booking and Scheduling Plugin – Bookly, published on 6 Dec 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

The WordPress Online Booking and Scheduling Plugin WordPress plugin before 20.3.1 does not escape the Staff Full Name field before outputting it back in a page, which could lead to a Stored Cross-Site Scripting issue

Weakness: CWE-79

Which versions are affected by CVE-2021-24930?

It affects 1 product.

Products include Booking-Wp-Plugin Bookly.

How do I fix CVE-2021-24930?

No fix has been published for CVE-2021-24930 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-2021-24930 being exploited?

There is no known exploitation of CVE-2021-24930 in the wild and no public exploit code.

Sources

Also known as GHSA-jhv5-5gxp-jg64.

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