CVE-2026-17011
Low
Description
The Nexter Blocks WordPress plugin before 5.0.2 does not restrict who can save global CSS through one of its REST endpoints, allowing users with at least the Contributor role to store arbitrary CSS that is rendered site-wide on the front end, enabling defacement, content hiding, and UI redressing.
SeverityLow
CVSS3.8
Exploit probability—
ProductNexter Blocks
PublishedAug 9, 2026
First seenAug 9, 2026
Weakness typeCWE-345CWE-345
How to fix
Update
- Nexter Blocks5.0.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Nexter Blocks | v < 5.0.2 | 5.0.2 |
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