CVE-2023-4388 EventON < 2.2 - Admin+ Stored XSS
Admins can inject malicious scripts via unsanitized settings in EventON, 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-2023-4388?
CVE-2023-4388 is a medium-severity cross-site scripting vulnerability in Unknown EventON, published on 16 Oct 2023. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
The EventON WordPress plugin before 2.2 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)
Which versions are affected by CVE-2023-4388?
It affects 1 product.
Products include Myeventon Eventon.
How do I fix CVE-2023-4388?
No fix has been published for CVE-2023-4388 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-2023-4388 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-4388 exists.
Other vulnerabilities in Unknown EventON
- CVE-2023-6242 Cross-site request forgery in EventON (Pro) - WordPress Virtual Event Calendar Plugin
- CVE-2023-6244 Cross-site request forgery in EventON (Pro) - WordPress Virtual Event Calendar Plugin
- CVE-2023-6158 Missing authorization in EventON (Pro) - WordPress Virtual Event Calendar Plugin
- CVE-2025-3527 Cross-site scripting in EventON (Pro) - WordPress Virtual Event Calendar Plugin
- CVE-2023-7200 EventON < 4.4.1 - Reflected Cross-Site Scripting
Sources
Also known as GHSA-q5xh-mxrq-59gx.