WordPress security changelog
HIGH CVE-2026-66663 Deferred

WP Data Access permits unauthenticated cross-site scripting

An unauthenticated visitor can submit attacker-controlled content that WP Data Access 5.5.79 and earlier renders without sufficient output encoding.

CVE / CNA score 7.1 CVSS 3.1 · audit@patchstack.com
NVD score Pending NVD has not published its own CVSS assessment.
Component
WP Data Access
Plugin slug
wp-data-access
Affected
n/a through 5.5.79
Safe version
5.5.80
Published
Aug 06, 2026
Weakness
CWE-79 — Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

This CVE was published Aug 06, 2026 and is one of 12 known issues for this plugin.

Update, patch or deactivate.

Update WP Data Access to 5.5.80 or later.

A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Technical description

Unauthenticated Cross Site Scripting (XSS) in WP Data Access <= 5.5.79 versions.

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

Primary and upstream sources