CVE-2026-9066

WP Compress < 7.10.04 - Reflected XSS via test_zone

Published Jul 23, 2026 CVSS 3.1 · 6.1 Medium EPSS < 1% KEV · Not listed
Description
The WP Compress WordPress plugin before 7.10.04 does not validate the value of a query parameter that controls the asset CDN host before using it to build the URLs of JavaScript files emitted on the page, leading to Reflected XSS. When a visitor follows a crafted link, the WP Compress WordPress plugin before 7.10.04's loader injects script elements pointing to an attacker-controlled origin, which lets the attacker execute arbitrary JavaScript in the visitor's session on the target site.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
Weaknesses CWE-79
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Wordpress
Wordpress wordpress
Wpcompress
Wpcompress wp Compress
Vendors & Products Wordpress
Wordpress wordpress
Wpcompress
Wpcompress wp Compress
Type Values Removed Values Added
Description The WP Compress WordPress plugin before 7.10.04 does not validate the value of a query parameter that controls the asset CDN host before using it to build the URLs of JavaScript files emitted on the page, leading to Reflected XSS. When a visitor follows a crafted link, the WP Compress WordPress plugin before 7.10.04's loader injects script elements pointing to an attacker-controlled origin, which lets the attacker execute arbitrary JavaScript in the visitor's session on the target site.
Title WP Compress < 7.10.04 - Reflected XSS via test_zone
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
WPScan
Published
Updated
Jul 23, 2026, 2:11 PM
Reserved
May 20, 2026, 8:42 AM
Status
Deferred
Published
Jul 23, 2026, 7:16 AM
Modified
Jul 23, 2026, 3:18 PM