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Unauthenticated Cross Site Scripting (XSS) in WP Data Access <= 5.5.79 versions. (CVE-2026-66663)

0
High
Published: 08/06/2026 (08/06/2026, 15:32:47 UTC)
Source: GCVE Database

Description

CVE-2026-66663 is an unauthenticated Cross Site Scripting (XSS) vulnerability affecting WP Data Access versions up to and including 5.5.79. This vulnerability allows an attacker to inject malicious scripts without authentication, potentially impacting confidentiality, integrity, and availability. The vulnerability has a CVSS 3.1 base score of 7.1, indicating high severity.

CVSS v3.1

Score 7.1high

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
Low
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

Affected software

Affected versions
<=5.5.79

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 08/06/2026, 18:41:07 UTC

Technical Analysis

This vulnerability is an unauthenticated Cross Site Scripting (XSS) flaw in WP Data Access software versions up to 5.5.79. It allows attackers to execute arbitrary scripts in the context of the affected application without requiring authentication. The CVSS vector indicates the attack can be performed remotely with low attack complexity and no privileges required, but requires user interaction. The impact includes partial confidentiality, integrity, and availability loss.

Potential Impact

Successful exploitation could allow an attacker to execute arbitrary scripts in the victim's browser, potentially leading to data theft, session hijacking, or other malicious actions affecting confidentiality, integrity, and availability of the application or user data.

Mitigation Recommendations

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are provided in the available data. Users should monitor vendor communications for updates and apply patches once available.

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Technical Details

Gcve Source
db.gcve.eu
Osv Id
GHSA-8w42-33f6-xj98
Osv Schema Version
1.4.0
Aliases
["CVE-2026-66663"]
Ecosystems
[]
Database Specific Severity
HIGH
Cvss Version
3.1

Threat ID: 6a74d196bf8831d5392364bc

Added to database: 08/06/2026, 18:25:26 UTC

Last enriched: 08/06/2026, 18:41:07 UTC

Last updated: 08/07/2026, 03:40:59 UTC

Views: 6

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