CVE-2026-84781
Received Received - Intake

Contributor XSS in Gallery PhotoBlocks <= 1.3.4

Publication date: 2026-09-02

Last updated on: 2026-09-02

Assigner: Patchstack

Description
Contributor Cross Site Scripting (XSS) in Gallery PhotoBlocks <= 1.3.4 versions.

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Meta Information

Published
2026-09-02
Last Modified
2026-09-02
Generated
2026-09-02
AI Q&A
2026-09-02
EPSS Evaluated
N/A
NVD
CVE-2026-84781
EUVD
EUVD-2026-69921

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
patchstack gallery_photoblocks to 1.3.4 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Attack-Flow Graph

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Executive Summary

This is a Contributor Cross Site Scripting (XSS) vulnerability found in Gallery PhotoBlocks plugin versions 1.3.4 and below. It allows attackers with contributor-level access to inject malicious scripts into web pages.

Impact Analysis

An attacker could steal user sessions, deface websites, or redirect users to malicious sites. It may also allow unauthorized data access or manipulation if combined with other vulnerabilities.

Compliance Impact

This XSS vulnerability could lead to data breaches, violating GDPR's data protection requirements or HIPAA's security rules for protected health information. Organizations may face fines or legal consequences.

Mitigation Strategies

Update Gallery PhotoBlocks to the latest version to patch the XSS vulnerability. If an update is not available, consider disabling or removing the plugin until a fix is released.

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