CVE-2026-109987High· 7.2▾ Twilight

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

▾ Twilight zone — High severity, or a signal on a lesser flaw

Depth score40/ 100 · Moderate

impact 39.6 · likelihood 0 · exploitation 0

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Proof of concept

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Published

Oct 22, 2026

Updated

Oct 22, 2026

CVSS

7.2

Vendor

—

Product

PixelYourSite

CWE

CWE-79

Depth score

40 · Moderate

EPSS

0.24% · p15

Platforms

—

Source

CVEORG

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

CISA SSVC

decided 2026-10-22

Exploitation: none
Automatable: yes
Technical impact: partial

Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the CISA ADP record, not NVD.

EPSS history

Exploit-prediction probability, daily snapshots since Oct 23.

0.2% → 0.2%▲ 0.07%

Timeline

Disclosure to exploitation, from the record and what we observed since indexing it.

5 events · 4 days

Oct 22, 2026Published
Disclosed via CVEORG
Oct 22, 2026CVSS changed
— → 7.2
Oct 22, 2026Severity changed
none → high
Oct 23, 2026EPSS first tracked
0.2%
Oct 26, 2026EPSS peak
0.2% → 0.2%

CWE-79 #cve.org

Affected

PixelYourSite < 11.4.3
pixelyoursite_pro < 12.6.8

Full technical detail▾

Overview

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

PixelYourSite < 11.4.3
pixelyoursite_pro < 12.6.8

Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

References

https://wpscan.com/vulnerability/80e1ed6d-dec5-4bfd-851d-3905fd42d23f/

Change history

Field changes observed since this record was first indexed.

Oct 22, 2026CVSS — → 7.2
Oct 22, 2026Severity none → high

Related vulnerabilities

Connected by shared product, vendor, weakness, or advisory.

#cve.org