CVE-2026-66448 MEDIUM

CVE-2026-66448: WordPress Gallery PhotoBlocks plugin <= 1.3.3 - Cross Site Scripting (XSS) vulnerability

Vendor Wp Chill

Product Gallery PhotoBlocks

Weakness CWE-79 · XSS

Published July 27, 2026

Last update July 27, 2026

View on NVD All CVEs

CVSS base score

6.5/10

Attack vector Network

Attack complexity Low

Privileges required Low

User interaction Required

Confidentiality Low

Integrity Low

CVSS vector

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

What the vulnerability does

01Description

Contributor Cross Site Scripting (XSS) in Gallery PhotoBlocks <= 1.3.3 versions.

Explanation of Vulnerability in Simple Terms

02Summary

Gallery PhotoBlocks versions up to 1.3.3 contain a stored cross-site scripting (XSS) vulnerability. An authenticated user can inject malicious scripts that execute in other users' browsers when they view affected content. The vulnerability requires user interaction and can affect site visitors across different security contexts.

What an attacker can do

03Attacker Capabilities

Inject malicious scripts that run in other users' browsers when they view the gallery.

Potential impact on your site

04Site Impact

Attackers with user accounts can compromise visitor sessions, steal data, or deface content seen by other site users.

Conditions required to exploit

05Prerequisites

Attacker must have a user account with low privileges; victim must view the affected gallery content.

Key dates

06Disclosure timeline

July 27, 2026 CVE published

July 27, 2026 Record updated

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2026-66448 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/79.html AskarLabs — CWE-79 write-up Cross-Site Scripting

Related vulnerabilities