CVE-2026-17011 — LOW (3.8) — White Hats Nepal

Vulnerability 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.

CVSS Score

3.8

LOW

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:L

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

LOW

Availability

LOW

Related Weaknesses (CWE)

CWE-345

References

https://wpscan.com/vulnerability/a702e5cb-0fb3-419e-81df-fa5b26c81402/

FAQ

What is CVE-2026-17011?

CVE-2026-17011 is a vulnerability with a CVSS score of 3.8 (LOW). 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 t...

How severe is CVE-2026-17011?

CVE-2026-17011 has been rated LOW with a CVSS base score of 3.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-17011?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.