CVE-2026-39781

Deferred Deferred - Pending Action

BaseFortify

Publication date: 2026-10-06

Last updated on: 2026-10-15

Assigner: Patchstack

Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Dan Rossiter Document Gallery document-gallery allows Reflected XSS.This issue affects Document Gallery: from n/a through 5.1.1.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-10-06

Last Modified

2026-10-15

Generated

2026-10-19

AI Q&A

2026-10-06

EPSS Evaluated

2026-10-18

NVD

CVE-2026-39781

EUVD

EUVD-2026-93029

Affected Vendors & Products

Vendor	Product	Version / Range
Dan	Rossiter	Document Gallery n/a

Helpful Resources

Exploitability

CWE

KEV

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

Executive Summary

This is an Unauthenticated Cross Site Scripting (XSS) vulnerability affecting Document Gallery plugin versions up to 5.1.1. It allows attackers to inject malicious scripts into web pages viewed by other users without needing authentication.

Detection Guidance

To detect this XSS vulnerability in Document Gallery <= 5.1.1, inspect web application inputs for script tags or event handlers. Check for user-supplied data reflected in HTML without proper sanitization. Use browser developer tools to monitor network requests and responses for suspicious payloads.

Impact Analysis

An attacker could exploit this to steal user sessions, deface websites, or redirect users to malicious sites. Users with admin privileges could have their accounts compromised, leading to full site takeover.

Compliance Impact

This XSS vulnerability could lead to unauthorized data access or modification, violating GDPR's integrity and confidentiality requirements. For HIPAA, it may compromise protected health information integrity.

Mitigation Strategies

Update Document Gallery 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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