CVE-2025-31868: Joomsky JS Job Manager Auth Bypass Flaw

CVE-2025-31868 Overview

CVE-2025-31868 is a Missing Authorization vulnerability [CWE-862] in the JoomSky JS Job Manager (js-jobs) plugin for WordPress. The flaw affects all versions up to and including 2.0.2. Attackers can exploit incorrectly configured access control security levels to reach functionality that should require higher privileges. The vulnerability is remotely exploitable over the network without authentication or user interaction. Successful exploitation results in a limited integrity impact on the affected WordPress site.

Critical Impact
Unauthenticated remote attackers can invoke restricted plugin functionality due to broken access control, enabling modification of application data on sites running vulnerable versions of the JS Job Manager plugin.

Affected Products

JoomSky JS Job Manager (js-jobs) plugin for WordPress
All versions from initial release through 2.0.2
WordPress sites with the plugin installed and activated

Discovery Timeline

2025-04-01 - CVE-2025-31868 published to NVD
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-31868

Vulnerability Analysis

The JS Job Manager plugin implements one or more endpoints without enforcing the appropriate authorization checks. Broken access control [CWE-862] occurs when an application fails to verify that a requesting user holds the required privilege before executing a sensitive operation. In this case, actions intended for authorized roles remain reachable by unauthenticated network clients. The impact is limited to integrity, meaning attackers can modify data but cannot directly read sensitive information or take the site offline through this flaw alone.

Root Cause

The root cause is a missing capability or nonce check on plugin request handlers. WordPress plugins typically rely on current_user_can() and nonce verification via check_admin_referer() or wp_verify_nonce() to gate privileged actions. When these checks are absent, the plugin depends solely on obscurity or client-side controls, which attackers bypass by crafting HTTP requests directly to the vulnerable endpoint.

Attack Vector

Exploitation requires only network access to the target WordPress site. An attacker sends crafted HTTP requests to the plugin's exposed action handlers, such as admin-ajax.php actions or REST routes registered by js-jobs. Because no authentication is required and no user interaction is involved, the attack can be automated across many sites. Refer to the Patchstack Vulnerability Advisory for endpoint specifics.

Detection Methods for CVE-2025-31868

Indicators of Compromise

Unexpected creation, modification, or deletion of job listings, applications, or plugin-managed records in the WordPress database.
Anonymous HTTP POST requests to wp-admin/admin-ajax.php or plugin REST endpoints referencing js-jobs actions.
Access log entries showing repeated requests to plugin handlers from a single IP without a valid session cookie.

Detection Strategies

Audit WordPress access logs for requests targeting js-jobs endpoints originating from unauthenticated sessions.
Review the wp_posts and plugin-specific tables for records modified outside of expected administrator activity windows.
Compare installed plugin version against 2.0.2 and flag any instance at or below that version as vulnerable.

Monitoring Recommendations

Enable WordPress activity logging to capture plugin action invocations with source IP and user context.
Deploy a Web Application Firewall (WAF) rule set that alerts on unauthenticated access to plugin admin actions.
Monitor for anomalous spikes in POST volume to admin-ajax.php correlated with action= parameters tied to js-jobs.

How to Mitigate CVE-2025-31868

Immediate Actions Required

Identify all WordPress installations running JS Job Manager version 2.0.2 or earlier and prioritize them for remediation.
Restrict network access to WordPress administrative and AJAX endpoints where feasible until a fix is applied.
Review recent site activity for signs of unauthorized data modification through the plugin.

Patch Information

At the time of the NVD entry, no fixed version is listed in the advisory. Administrators should consult the Patchstack Vulnerability Advisory and the vendor's plugin page for the latest release information and apply any published update that supersedes 2.0.2.

Workarounds

Deactivate and remove the JS Job Manager plugin until a patched version is available if the functionality is not business-critical.
Apply WAF rules that block unauthenticated requests to js-jobs action handlers and REST routes.
Enforce IP allowlisting on wp-admin/admin-ajax.php where operationally viable to reduce the anonymous attack surface.

bash

# Example ModSecurity rule to block unauthenticated js-jobs AJAX actions
SecRule REQUEST_URI "@contains /wp-admin/admin-ajax.php" \
  "chain,phase:2,deny,status:403,id:1003186801,\
   msg:'Blocked unauthenticated js-jobs action (CVE-2025-31868)'"
SecRule ARGS:action "@rx ^(js[_-]?jobs)" "chain"
SecRule &REQUEST_COOKIES:/wordpress_logged_in_/ "@eq 0"