CVE-2023-40560 WordPress Schedule Posts Calendar Plugin <= 5.2 is vulnerable to Cross Site Scripting (XSS)

Medium 5.9 Published Updated

An authenticated admin can inject malicious scripts into the Schedule Posts Calendar plugin, potentially compromising user sessions or site integrity.

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-2023-40560?

CVE-2023-40560 is a medium-severity cross-site scripting vulnerability in Greg Ross Schedule Posts Calendar, published on 6 Sep 2023. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official description

Auth. (admin+) Stored Cross-Site Scripting (XSS) vulnerability in Greg Ross Schedule Posts Calendar plugin <= 5.2 versions.

Weakness: CWE-79

Which versions are affected by CVE-2023-40560?

It affects 1 product.

Products include Toolstack Schedule Posts Calendar.

How do I fix CVE-2023-40560?

No fix has been published for CVE-2023-40560 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-2023-40560 being exploited?

There is no known exploitation of CVE-2023-40560 in the wild and no public exploit code.

Sources

Also known as GHSA-xv5q-xvvq-gvcm.

Is CVE-2023-40560 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free