CVE-2026-24528 WordPress Nova Blocks plugin <= 2.1.9 - Cross Site Scripting (XSS) vulnerability
An attacker can execute arbitrary scripts in the context of other users via DOM-based XSS in the Nova Blocks plugin.
- 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-2026-24528?
CVE-2026-24528 is a medium-severity cross-site scripting vulnerability in pixelgrade Nova Blocks, published on 23 Jan 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in pixelgrade Nova Blocks nova-blocks allows DOM-Based XSS.This issue affects Nova Blocks: from n/a through <= 2.1.9.
Weakness: CWE-79
Which versions are affected by CVE-2026-24528?
How do I fix CVE-2026-24528?
No fix has been published for CVE-2026-24528 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-2026-24528 being exploited?
There is no known exploitation of CVE-2026-24528 in the wild and no public exploit code.
Sources
Also known as GHSA-m8pw-x258-449r.