Vulnerability · Published Oct 22, 2026 · Assigned by WPScan

CVE-2026-109987PixelYourSite (Free & Pro) - Unauthenticated Stored XSS via Cookie

High 7.2

In plain English

A high-severity cross-site scripting in PixelYourSite from Unknown. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 15% of all known vulnerabilities).

Severity (CVSS 3.1)7.2High
Exploit odds (30 days)0.2%top 85.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

The PixelYourSite WordPress plugin before 11.4.3, PixelYourSite Pro WordPress plugin before 12.6.8 do not sanitise and escape a cookie value before printing it into the page output, which, on a site running a full-page cache, allows unauthenticated attackers to store a Cross-Site Scripting payload in the cached page that is then served to other visitors.

Affected products (as reported)

VendorProductVersions
Unknown PixelYourSite 0 – before 11.4.3
Unknown PixelYourSite Pro 0 – before 12.6.8

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

References