CVE-2023-5621 Thumbnail Slider With Lightbox <= 1.0 - Authenticated (Administrator+) Stored Cross-Site Scripting via Image Title
Administrators can inject arbitrary scripts via image titles in this WordPress plugin, affecting multi-site or restricted HTML configurations.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-5621?
CVE-2023-5621 is a medium-severity cross-site scripting vulnerability in nik00726 Thumbnail Slider With Lightbox, published on 18 Oct 2023. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
The Thumbnail Slider With Lightbox plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Image Title field in versions up to, and including, 1.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level access, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
Weakness: CWE-79
Which versions are affected by CVE-2023-5621?
It affects 1 product.
Products include I13websolution Thumbnail Slider With Lightbox.
How do I fix CVE-2023-5621?
No fix has been published for CVE-2023-5621 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-2023-5621 being exploited?
There is no known exploitation of CVE-2023-5621 in the wild and no public exploit code.
Other vulnerabilities in nik00726 Thumbnail Slider With Lightbox
Sources
Also known as GHSA-7c84-qx75-c25g.