CVE-2025-57906 Overview
CVE-2025-57906 is a stored Cross-Site Scripting (XSS) vulnerability in the Epeken All Kurir WordPress plugin developed by epeken. The flaw affects all versions of epeken-all-kurir up to and including 2.0.6. An authenticated attacker with high privileges can inject malicious JavaScript that persists in the application and executes in the browser of any user who views the affected page. The vulnerability is tracked under CWE-79 for improper neutralization of input during web page generation.
Critical Impact
A high-privileged authenticated user can store malicious scripts that execute in visitor browsers, enabling session theft, credential harvesting, and unauthorized actions within the WordPress site scope.
Affected Products
- Epeken All Kurir WordPress plugin (epeken-all-kurir) versions up to and including 2.0.6
- WordPress installations with the vulnerable plugin activated
- Any site content rendered through the plugin's affected input fields
Discovery Timeline
- 2025-09-22 - CVE-2025-57906 published to the National Vulnerability Database
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2025-57906
Vulnerability Analysis
The vulnerability is a stored XSS flaw in the Epeken All Kurir plugin for WordPress. User-supplied input processed by the plugin is not properly neutralized before being rendered in HTML output. An attacker with sufficient privileges submits crafted payloads containing JavaScript, and the plugin persists the input in the database. When another user loads a page that renders the stored content, the browser executes the injected script within the site's origin.
Exploitation requires high privileges and user interaction, and the attack traverses a security scope boundary, allowing impact against users beyond the attacker's own session. The scope change makes this issue relevant even in tightly controlled WordPress environments where administrative access is limited to trusted operators.
Root Cause
The root cause is missing or insufficient output encoding and input sanitization in the plugin's request handlers. Fields that accept text content are stored verbatim and later rendered without escaping HTML control characters. WordPress provides sanitization primitives such as sanitize_text_field(), wp_kses_post(), and esc_html() that the plugin fails to apply consistently at the input or output layer.
Attack Vector
The attack is delivered over the network against the WordPress admin or front-end interface. An authenticated attacker with high privileges submits a crafted payload through a plugin form field. The malicious content is stored persistently and served to subsequent viewers. Execution occurs when a victim loads a page rendering the injected content, without the attacker needing further access.
Refer to the Patchstack WordPress Vulnerability Advisory for advisory details.
Detection Methods for CVE-2025-57906
Indicators of Compromise
- Unexpected <script>, <iframe>, or on* event handler attributes stored in WordPress database tables associated with the Epeken All Kurir plugin
- Outbound browser requests from logged-in sessions to unfamiliar domains after visiting pages rendered by the plugin
- Anomalous administrator or editor account changes following interactions with the affected plugin pages
Detection Strategies
- Audit the wp_posts, wp_postmeta, and plugin-specific tables for HTML or JavaScript payloads in fields expected to contain plain text
- Deploy a Web Application Firewall rule that inspects POST parameters targeting epeken-all-kurir endpoints for script tags and event handlers
- Enable Content Security Policy reporting to identify inline script execution originating from plugin-rendered pages
Monitoring Recommendations
- Monitor WordPress access logs for POST requests to plugin routes from privileged accounts, correlating with database write events
- Track failed and successful administrator logins to detect credential misuse that could precede exploitation
- Alert on newly created administrator accounts or role changes shortly after plugin interactions
How to Mitigate CVE-2025-57906
Immediate Actions Required
- Deactivate the Epeken All Kurir plugin until a patched version is confirmed by the vendor
- Restrict administrative and high-privilege accounts to trusted personnel and enforce multi-factor authentication
- Review the site database for previously injected payloads and remove any unauthorized HTML or scripts
Patch Information
As of the current advisory, all versions through 2.0.6 of epeken-all-kurir are affected. No fixed version is referenced in the NVD entry. Site operators should monitor the Patchstack WordPress Vulnerability Advisory and the plugin vendor for a security update.
Workarounds
- Remove the plugin from production environments if a patch is not yet available
- Apply a Web Application Firewall ruleset that blocks script injection payloads targeting plugin endpoints
- Enforce a strict Content Security Policy that disallows inline script execution on WordPress-rendered pages
- Limit accounts with editorial or administrative privileges and audit their activity regularly
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
