CVE-2023-51296 Cross-site scripting in n/a

Medium 6.1 Published 19 Feb 2025 Updated 4 Nov 2025

Attackers can execute arbitrary code via Cross-Site Scripting in multiple parameters of the PHPJabbers Event Booking Calendar plugin.

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

What is CVE-2023-51296?

CVE-2023-51296 is a medium-severity cross-site scripting vulnerability in n/a, published on 19 Feb 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

PHPJabbers Event Booking Calendar v4.0 is vulnerable to Cross-Site Scripting (XSS) in the "name, plugin_sms_api_key, plugin_sms_country_code, title, plugin_sms_api_key" parameters which allows attackers to execute arbitrary code

Weakness: CWE-79

Which versions are affected by CVE-2023-51296?

It affects 1 product.

Products include Phpjabbers Event Booking Calendar.

How do I fix CVE-2023-51296?

No fix has been published for CVE-2023-51296 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-2023-51296 being exploited?

There is no known exploitation of CVE-2023-51296 in the wild and no public exploit code.

Sources

Also known as GHSA-qmvw-mmq3-8fjr.