CVE-2026-57695 Overview
CVE-2026-57695 is a reflected Cross-Site Scripting (XSS) vulnerability in the Dan Rossiter Document Gallery plugin for WordPress. The flaw affects all versions of document-gallery up to and including 5.1.0. Attackers can craft malicious URLs that inject arbitrary JavaScript into pages rendered by vulnerable sites. Successful exploitation requires user interaction, typically by tricking a victim into clicking a crafted link. The vulnerability is tracked under CWE-79, Improper Neutralization of Input During Web Page Generation.
Critical Impact
Attackers can execute arbitrary JavaScript in a victim's browser session, enabling session hijacking, credential theft, and unauthorized actions performed under the victim's WordPress privileges.
Affected Products
- Dan Rossiter Document Gallery plugin for WordPress
- All versions from initial release through 5.1.0
- WordPress sites running the document-gallery plugin
Discovery Timeline
- 2026-07-13 - CVE-2026-57695 published to NVD
- 2026-07-13 - Last updated in NVD database
Technical Details for CVE-2026-57695
Vulnerability Analysis
The Document Gallery plugin fails to properly neutralize user-supplied input before reflecting it into web page output. Reflected XSS occurs when input from an HTTP request is echoed back in the server response without adequate encoding or sanitization. An attacker crafts a URL containing malicious JavaScript payloads and delivers it to a victim through phishing, forum posts, or third-party sites.
When the victim visits the crafted URL on a site running the vulnerable plugin, the payload executes in the browser under the origin of the WordPress site. Because the scope is marked as changed, the injected script can affect resources beyond the vulnerable component itself. The confidentiality, integrity, and availability impact are each rated low, reflecting typical outcomes of client-side script execution such as data theft, defacement, and forced actions.
The EPSS score for CVE-2026-57695 is 0.184%, indicating a low near-term exploitation likelihood based on current telemetry.
Root Cause
The vulnerability stems from missing or insufficient output encoding when the plugin renders parameters supplied through request data. Input passes into HTML context without being processed by WordPress escaping functions such as esc_html(), esc_attr(), or wp_kses(). This allows raw markup and script tags to reach the DOM.
Attack Vector
Exploitation requires the attacker to deliver a crafted URL to an authenticated or unauthenticated user of a vulnerable WordPress site. The victim must click the link or load the malicious content, at which point the browser executes the reflected payload. See the Patchstack XSS Vulnerability Report for additional technical context.
Detection Methods for CVE-2026-57695
Indicators of Compromise
- Web server access logs containing requests to document-gallery endpoints with URL parameters holding <script>, javascript:, onerror=, or onload= substrings
- Unexpected outbound requests from user browsers to attacker-controlled domains following visits to plugin pages
- WordPress user sessions performing actions the account holder did not initiate, such as unexpected profile changes or content edits
Detection Strategies
- Inspect HTTP query strings and referrer headers for URL-encoded script fragments targeting Document Gallery URLs
- Correlate WordPress audit logs with proxy or web application firewall (WAF) telemetry to surface reflected payloads reaching the plugin
- Alert on administrator or editor sessions that trigger DOM-based script execution shortly after visiting externally sourced links
Monitoring Recommendations
- Enable and centralize WordPress access, error, and plugin-specific logs in a SIEM for correlation
- Deploy a WAF with generic XSS signatures and monitor blocked events against Document Gallery paths
- Track browser Content Security Policy (CSP) violation reports to detect injected inline script attempts
How to Mitigate CVE-2026-57695
Immediate Actions Required
- Identify all WordPress sites running the document-gallery plugin at version 5.1.0 or earlier
- Update the plugin to a patched release once available from the vendor, or deactivate and remove it in the interim
- Rotate WordPress administrator and editor credentials if suspicious reflected requests appear in logs
- Notify users to avoid clicking untrusted links referencing the affected site
Patch Information
As of publication, review the Patchstack XSS Vulnerability Report for the latest fixed version and vendor guidance. Apply the update through the WordPress plugin management interface once released.
Workarounds
- Disable the Document Gallery plugin until a patched version is installed
- Deploy a WAF rule that blocks requests containing script tags or JavaScript event handlers in query parameters directed at plugin endpoints
- Enforce a strict Content Security Policy that disallows inline scripts and restricts script sources to trusted origins
- Restrict access to plugin functionality to authenticated users where feasible to reduce the attack surface
# Example WordPress CLI commands to disable the affected plugin
wp plugin deactivate document-gallery
wp plugin uninstall document-gallery
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
