CVE-2026-66599

HIGH 7.1

WordPress WPComplete plugin <= 2.9.5.6 - Cross Site Scripting (XSS) vulnerability

CVSS Score

7.1

EPSS Score

0.0%

EPSS Percentile

0th

Unauthenticated Cross Site Scripting (XSS) in WPComplete <= 2.9.5.6 versions.

CWE	CWE-79
Vendor	liquid web / stellarwp
Product	wpcomplete
Published	Aug 24, 2026
Last Updated	Aug 24, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

Low

Affected Versions

Liquid Web / StellarWP / WPComplete

n/a ≤ 2.9.5.6

References

NVD ↗ CVE.org ↗ EPSS Data ↗

patchstack.com: https://patchstack.com/database/wordpress/plugin/wpcomplete/vulnerability/wordpress-wpcomplete-plugin-2-9-5-6-cross-site-scripting-xss-vulnerability?_s_id=cve

Credits

Asim Alshaya | Patchstack Bug Bounty Program