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.
History

Tue, 11 Aug 2026 20:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-345
Metrics cvssV3_1

{'score': 3.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:L'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Sun, 09 Aug 2026 07:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-784

Sun, 09 Aug 2026 06:15:00 +0000

Type Values Removed Values Added
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.
Title Nexter Blocks < 5.0.2 - Contributor+ Stored CSS Injection
References

cve-icon MITRE

Status: PUBLISHED

Assigner: WPScan

Published: 2026-08-09T06:00:12.345Z

Updated: 2026-08-11T19:47:38.582Z

Reserved: 2026-07-24T10:10:03.572Z

Link: CVE-2026-17011

cve-icon Vulnrichment

Updated: 2026-08-11T19:45:24.103Z

cve-icon NVD

Status : Received

Published: 2026-08-09T06:18:10.180

Modified: 2026-08-11T20:17:34.623

Link: CVE-2026-17011

cve-icon Redhat

No data.