Unauthenticated XSS in WP Data Access by WordPress
CVE-2026-66663

7.1HIGH

Key Information:

Vendor

WordPress
Status
WP Data Access
Vendor
CVE Published:
6 August 2026

What is CVE-2026-66663?

An unauthenticated Cross-Site Scripting (XSS) vulnerability exists in WP Data Access versions up to 5.5.79. Attackers can exploit this weakness to inject malicious scripts into web applications from unauthorized locations, putting users' data and transactions at risk. Protective measures should be taken immediately to mitigate potential exploits.

Affected Version(s)

WP Data Access <= 5.5.79

References

https://patchstack.com/database/wordpress/plugin/wp-data-...
vdb-entry

CVSS V3.1

Score:
7.1
Severity:
HIGH
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

dutafi | Patchstack Bug Bounty Program
.