CVE-2023-0489 SlideOnline <= 1.2.1 - Contributor+ Stored XSS
Contributors can inject malicious scripts via unescaped shortcode attributes in the SlideOnline plugin, leading to stored XSS attacks.
- 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-2023-0489?
CVE-2023-0489 is a medium-severity cross-site scripting vulnerability in Unknown SlideOnline, published on 19 Jun 2023. 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 SlideOnline WordPress plugin through 1.2.1 does not validate and escape some of its shortcode attributes before outputting them back in a page/post where the shortcode is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks
Which versions are affected by CVE-2023-0489?
It affects 1 product.
Products include Slideonline Project Sideonline.
How do I fix CVE-2023-0489?
No fix has been published for CVE-2023-0489 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-2023-0489 being exploited?
There is no known exploitation of CVE-2023-0489 in the wild and no public exploit code.
Sources
Also known as GHSA-hx29-qp2m-x88c.