CVE-2025-14109: AH Shortcodes WordPress Plugin XSS Flaw

CVE-2025-14109 Overview

CVE-2025-14109 is a Stored Cross-Site Scripting (XSS) vulnerability affecting the AH Shortcodes plugin for WordPress. The flaw exists in all versions up to and including 1.0.2 and stems from insufficient input sanitization and output escaping on the column shortcode attribute. Authenticated attackers with Contributor-level access or higher can inject arbitrary web scripts into pages. The injected payload executes in the browser of any user who views the affected page, including administrators. The vulnerability is tracked under CWE-79 and was published to the National Vulnerability Database on 2026-01-07.

Critical Impact
Authenticated contributors can persist JavaScript payloads into rendered pages, enabling session theft, administrative action forgery, and redirection of site visitors.

Affected Products

AH Shortcodes plugin for WordPress, versions up to and including 1.0.2
WordPress sites permitting Contributor-level account registration with this plugin installed
Any front-end page rendering the vulnerable column shortcode attribute

Discovery Timeline

2026-01-07 - CVE-2025-14109 published to NVD
2026-04-15 - Last updated in NVD database

Technical Details for CVE-2025-14109

Vulnerability Analysis

The AH Shortcodes plugin registers a column shortcode that accepts user-supplied attributes and renders them directly into page output. The shortcode handler defined in includes/shortcodes.php fails to apply WordPress sanitization functions such as esc_attr() or wp_kses() to the attribute value before emitting it into the HTML response. As a result, any string passed through the column attribute is reflected verbatim into the DOM of the rendered post or page.

Because the malicious attribute is stored in post content, the payload persists across page loads and executes every time the page is requested. The scope is changed (S:C in the CVSS vector), meaning the injected script runs in the security context of any visitor's browser, including administrators authenticated to wp-admin.

Root Cause

The root cause is missing input validation and output escaping in the shortcode callback. WordPress shortcode attributes are not implicitly sanitized; plugin developers must explicitly apply context-appropriate escaping. The vulnerable code referenced in the Wordfence advisory at line 28 of shortcodes.php outputs the column attribute directly into the response without escaping HTML or JavaScript-significant characters.

Attack Vector

An attacker with Contributor privileges authors a post containing the AH Shortcodes column shortcode with a crafted attribute value containing JavaScript. After the post is submitted for review or published, anyone who views the page, including editors approving the submission, executes the script. Typical post-exploitation includes stealing authenticated session cookies, performing CSRF-style administrative actions, injecting SEO spam, or pivoting to install malicious plugins.

No verified exploit code is publicly available. See the Wordfence Vulnerability Analysis and the WordPress Plugin Code Snippet for the vulnerable source reference.

Detection Methods for CVE-2025-14109

Indicators of Compromise

Posts or pages containing [column] shortcode attributes that include <script>, onerror=, onload=, or javascript: substrings
New or modified Contributor or Author accounts created shortly before suspicious post content appears
Outbound requests from administrator browsers to attacker-controlled domains after viewing posts pending review
Unexpected administrative actions such as plugin installations, theme edits, or new admin user creation

Detection Strategies

Query the wp_posts table for post_content matching the pattern column[^]]*="[^"]*< to surface shortcode attributes containing HTML tags
Review WordPress audit logs for Contributor-role accounts authoring content that uses AH Shortcodes
Inspect rendered HTML of recently published pages for inline event handlers or <script> tags inside <div class="column"> containers

Monitoring Recommendations

Forward WordPress access logs and PHP error logs into a centralized logging or SIEM pipeline for correlation across user roles and content changes
Alert on administrator session activity originating from new IP addresses or user agents immediately after content review actions
Monitor file integrity for wp-content/plugins/ah-shortcodes/ and core WordPress files to identify post-exploitation tampering

How to Mitigate CVE-2025-14109

Immediate Actions Required

Deactivate and remove the AH Shortcodes plugin until a patched version is available, as no fixed release is referenced in the advisory
Audit all posts and pages for existing [column] shortcode usage and remove attribute values that contain HTML or script content
Restrict Contributor-level registration and review pending submissions in a sandboxed browser profile without active administrative sessions
Rotate administrator passwords and invalidate active sessions if suspicious content was approved or viewed

Patch Information

At the time of NVD publication, no patched release of AH Shortcodes is identified in the advisory. Versions up to and including 1.0.2 remain vulnerable. Site operators should monitor the WordPress Plugin Development File for updates and review the Wordfence Vulnerability Analysis for fix availability.

Workarounds

Remove or disable the AH Shortcodes plugin from the WordPress installation
Configure a web application firewall rule to block requests containing column=" followed by HTML tag characters in POST bodies to wp-admin/post.php
Limit user registration to trusted roles and require manual approval before promoting accounts to Contributor or higher
Enforce a strict Content Security Policy that disallows inline script execution on front-end pages to reduce XSS payload viability

bash

# Remove the vulnerable plugin via WP-CLI
wp plugin deactivate ah-shortcodes
wp plugin delete ah-shortcodes

# Audit existing posts for suspicious column shortcode usage
wp db query "SELECT ID, post_title, post_author FROM wp_posts \
  WHERE post_content REGEXP 'column[^]]*=\"[^\"]*<' \
  AND post_status IN ('publish','pending','draft');"