CVE-2025-22746: HireHive Job Plugin Stored XSS Vulnerability

CVE-2025-22746 Overview

CVE-2025-22746 is a stored Cross-Site Scripting (XSS) vulnerability in the Zartis HireHive Job Plugin for WordPress (zartis-job-plugin). The flaw affects all plugin versions from initial release through 2.9.0. Authenticated attackers with low privileges can inject persistent JavaScript payloads that execute in the browsers of users viewing affected pages. The issue is tracked under CWE-79, Improper Neutralization of Input During Web Page Generation.

Critical Impact
Stored XSS payloads execute across trust boundaries, enabling session theft, administrative account takeover, and unauthorized content modification on affected WordPress sites.

Affected Products

Zartis HireHive Job Plugin for WordPress versions up to and including 2.9.0
WordPress installations with the zartis-job-plugin enabled
Any WordPress site rendering user-supplied content through the vulnerable plugin

Discovery Timeline

2025-01-15 - CVE-2025-22746 published to the National Vulnerability Database
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-22746

Vulnerability Analysis

The HireHive Job Plugin fails to sanitize input during web page generation. An authenticated user with contributor-level or similar low privileges can submit plugin input containing HTML or JavaScript markup. The plugin stores the malicious payload and later renders it without proper encoding when other users visit affected pages.

Exploitation requires user interaction, as the payload executes when a victim loads the poisoned page. The scope is changed, meaning the injected script executes in a security context different from the vulnerable component, typically the WordPress administrative interface or authenticated user sessions. Successful exploitation enables session hijacking, forced administrative actions, and defacement of published content.

Root Cause

The root cause is missing or insufficient output encoding when the plugin renders stored input into HTML responses. WordPress provides sanitization helpers such as esc_html(), esc_attr(), and wp_kses(), but the affected code paths in zartis-job-plugin do not apply them consistently. Any HTML control characters supplied by an authenticated user survive storage and reach the DOM verbatim.

Attack Vector

The attack is network-reachable and requires low-privileged authentication plus victim interaction. An attacker logs into WordPress, submits a payload through an input field exposed by the plugin, and waits for a privileged user to browse the resulting page. The injected script then runs with the victim's session cookies and permissions. See the Patchstack XSS Vulnerability Advisory for further technical context.

Detection Methods for CVE-2025-22746

Indicators of Compromise

Stored plugin content containing <script>, onerror=, onload=, or javascript: sequences in HireHive job records
Unexpected outbound HTTP requests from administrator browsers immediately after loading job listing pages
Newly created WordPress administrator accounts or modified user roles following visits to plugin pages
Session cookies exfiltrated to external hosts referenced in plugin-rendered HTML

Detection Strategies

Audit the WordPress database tables used by zartis-job-plugin for HTML markup within fields that should contain plain text
Review web server logs for POST requests to plugin endpoints that include encoded script tags or event handler attributes
Deploy Content Security Policy (CSP) reporting to surface inline script executions originating from plugin-rendered pages

Monitoring Recommendations

Monitor administrative session activity for anomalous actions such as plugin installation or user role escalation
Alert on modifications to WordPress user tables that occur shortly after page loads by privileged accounts
Track outbound network connections from browsers on administrator workstations to previously unseen domains

How to Mitigate CVE-2025-22746

Immediate Actions Required

Restrict or revoke plugin submission privileges for untrusted authenticated users until a patched version is deployed
Review all existing HireHive job entries for injected markup and remove suspicious content
Rotate WordPress administrator credentials and invalidate active sessions if compromise is suspected
Enable a strict Content Security Policy that blocks inline script execution on plugin-served pages

Patch Information

The vulnerability affects HireHive Job Plugin versions through 2.9.0. Consult the Patchstack advisory and the vendor for the fixed release. Upgrade to the latest available version of zartis-job-plugin immediately after verifying compatibility.

Workarounds

Disable or uninstall the HireHive Job Plugin until a patched version is available
Place the WordPress admin interface behind a web application firewall with XSS payload filtering rules
Enforce least-privilege role assignments and remove submission rights from accounts that do not require them

bash

# Configuration example: deactivate the vulnerable plugin via WP-CLI
wp plugin deactivate zartis-job-plugin
wp plugin status zartis-job-plugin