CVE-2025-15702

Cloud Blocks <= 1.1.8 - Unauthenticated Stored XSS

Published Nov 5, 2026 CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
Description
The Cloud Blocks WordPress plugin through 1.1.8 does not perform any authorisation or sanitisation when storing block asset URLs, allowing unauthenticated users to store malicious scripts that are executed in the browser of any privileged user, such as an administrator, who opens the block editor.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Wordpress-extensions
Wordpress-extensions cloud Blocks
Vendors & Products Wordpress-extensions
Wordpress-extensions cloud Blocks
Type Values Removed Values Added
Metrics ssvc

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

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}

Type Values Removed Values Added
Weaknesses CWE-79
Type Values Removed Values Added
Description The Cloud Blocks WordPress plugin through 1.1.8 does not perform any authorisation or sanitisation when storing block asset URLs, allowing unauthenticated users to store malicious scripts that are executed in the browser of any privileged user, such as an administrator, who opens the block editor.
Title Cloud Blocks <= 1.1.8 - Unauthenticated Stored XSS
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
WPScan
Published
Updated
Nov 6, 2026, 12:08 PM
Reserved
Oct 6, 2026, 9:28 AM
Status
Deferred
Published
Nov 5, 2026, 6:17 AM
Modified
Nov 9, 2026, 7:10 PM