CVE-2025-58826: WP Publication Archive Stored XSS Vulnerability

CVE-2025-58826 Overview

CVE-2025-58826 is a stored cross-site scripting (XSS) vulnerability in the Eric Mann WP Publication Archive WordPress plugin. The flaw affects all versions of wp-publication-archive up to and including 3.0.1. The vulnerability stems from improper neutralization of user-supplied input during web page generation [CWE-79]. Authenticated attackers with low-level privileges can inject malicious scripts that execute in the browsers of users who view the affected pages. The scope-changed impact means injected payloads can affect resources beyond the vulnerable component.

Critical Impact

Authenticated attackers can store malicious JavaScript that executes in visitor browsers, enabling session theft, administrative account takeover, and site defacement.

Affected Products

• Eric Mann WP Publication Archive plugin for WordPress
• All versions from initial release through 3.0.1
• WordPress sites with the wp-publication-archive plugin installed and activated

Discovery Timeline

• 2025-09-05 - CVE-2025-58826 published to NVD
• 2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-58826

Vulnerability Analysis

The WP Publication Archive plugin fails to properly sanitize and escape user-supplied input before rendering it in web pages. This creates a stored XSS condition where malicious payloads persist in the WordPress database. When any user loads a page containing the injected content, the browser executes the attacker's JavaScript in the context of the site's origin.

The vulnerability requires authenticated access with low privileges, such as a contributor or editor role. User interaction is required for the payload to trigger, typically when an administrator or visitor views a page containing the malicious publication entry. The scope-changed nature of the flaw allows injected scripts to affect resources beyond the plugin itself, including WordPress administrative sessions.

Root Cause

The root cause is missing output encoding and input validation in the plugin's publication rendering logic. Fields that accept user input are written back to the DOM without proper escaping through WordPress functions such as esc_html(), esc_attr(), or wp_kses(). See the Patchstack Vulnerability Report for additional technical details.

Attack Vector

An attacker with a low-privileged WordPress account submits a publication entry containing crafted HTML or JavaScript payloads. The plugin stores this content in the database without sanitization. When a higher-privileged user, such as a site administrator, views the publication listing or detail page, the injected script executes in their session context. This enables the attacker to hijack administrative sessions, create backdoor accounts, or modify site content.

No verified public exploit code is available at this time. Refer to the vendor advisory for exploitation details.

Detection Methods for CVE-2025-58826

Indicators of Compromise

• Publication entries containing <script> tags, event handlers such as onerror= or onload=, or javascript: URIs in title, description, or metadata fields
• Unexpected WordPress administrator accounts created after low-privileged user activity
• Outbound HTTP requests from administrator browser sessions to unfamiliar domains after viewing publication pages
• Modifications to WordPress theme or plugin files following publication content edits

Detection Strategies

• Audit the wp_posts and wp_postmeta tables for publication entries containing HTML tags or JavaScript syntax in fields that should contain plain text
• Review WordPress user activity logs for low-privileged accounts creating or editing publication entries
• Deploy a web application firewall (WAF) with rules that flag script injection patterns in POST requests to wp-admin endpoints

Monitoring Recommendations

• Enable WordPress audit logging to capture content creation and modification events by non-administrator accounts
• Monitor administrator sessions for anomalous actions such as unexpected user creation or plugin installation
• Configure Content Security Policy (CSP) headers to restrict inline script execution and report violations

How to Mitigate CVE-2025-58826

Immediate Actions Required

• Deactivate the WP Publication Archive plugin on all affected WordPress sites until a patched version is available
• Audit existing publication entries for injected scripts and remove any suspicious content
• Review WordPress user accounts and revoke unnecessary content creation privileges
• Rotate administrator credentials and invalidate active sessions if compromise is suspected

Patch Information

No patched version has been published as of the last NVD update. Monitor the Patchstack Vulnerability Report and the WordPress plugin repository for a fixed release beyond version 3.0.1.

Workarounds

• Restrict access to publication creation and editing to trusted administrator accounts only
• Deploy a WAF ruleset that blocks XSS payloads targeting WordPress admin endpoints
• Implement a strict Content Security Policy that disallows inline scripts and untrusted script sources
• Consider replacing the plugin with an actively maintained alternative if no patch is released

# Example Content Security Policy header for WordPress (add via .htaccess or web server config)
Header set Content-Security-Policy "default-src 'self'; script-src 'self'; object-src 'none'; base-uri 'self'; frame-ancestors 'self'"