Vulnerability · Published Jul 23, 2026 · Assigned by WPScan

CVE-2026-9066WP Compress < 7.10.04 - Reflected XSS via test_zone

Medium 6.1

In plain English

A medium-severity cross-site scripting in WP Compress from Unknown. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 17% of all known vulnerabilities).

Severity (CVSS 3.1)6.1Medium

Exploit odds (30 days)0.3%top 83.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
Unknown	WP Compress	0 – before 7.10.04

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

References

https://wpscan.com/vulnerability/133e2ca0-8cde-4b59-b680-0ddf95004625/ exploit, vdb-entry, technical-description