CVE-2025-24687

6.5 MEDIUM

📋 TL;DR

This stored cross-site scripting (XSS) vulnerability in the Show/Hide Shortcode WordPress plugin allows attackers to inject malicious scripts that execute when other users view affected pages. The vulnerability affects all WordPress sites using version 1.0.0 or earlier of the plugin. Attackers can steal session cookies, redirect users, or perform actions on their behalf.

💻 Affected Systems

Products:
  • WordPress Show/Hide Shortcode plugin
Versions: All versions up to and including 1.0.0
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Only affects WordPress installations with the vulnerable plugin activated. The vulnerability is in the plugin's handling of shortcode parameters.

⚠️ Manual Verification Required

This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.

Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).

🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.

Recommended Actions:
  1. Review the CVE details at NVD
  2. Check vendor security advisories for your specific version
  3. Test if the vulnerability is exploitable in your environment
  4. Consider updating to the latest version as a precaution

⚠️ Risk & Real-World Impact

🔴

Worst Case

Attackers could steal administrator credentials, take over the WordPress site, install backdoors, deface the website, or use the compromised site to attack visitors.

🟠

Likely Case

Attackers inject malicious JavaScript to steal user session cookies, redirect users to phishing sites, or perform unauthorized actions on behalf of logged-in users.

🟢

If Mitigated

With proper input validation and output encoding, malicious scripts would be neutralized before reaching users, preventing execution.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ✅ No
Complexity: LOW

Exploitation requires contributor-level access or higher to create/edit posts with the vulnerable shortcode. The vulnerability is in the public Patchstack database with technical details.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 1.0.1 or later

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/showhide-shortcode/vulnerability/wordpress-show-hide-shortcode-plugin-1-0-0-cross-site-scripting-xss-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'Show/Hide Shortcode' and click 'Update Now' if available. 4. If no update is available, deactivate and delete the plugin, then install the latest version from WordPress repository.

🔧 Temporary Workarounds

Disable vulnerable plugin

all

Temporarily deactivate the Show/Hide Shortcode plugin until patched

wp plugin deactivate showhide-shortcode

Remove plugin files

linux

Completely remove the vulnerable plugin files from the server

rm -rf /path/to/wp-content/plugins/showhide-shortcode/

🧯 If You Can't Patch

  • Implement a web application firewall (WAF) with XSS protection rules
  • Restrict user roles that can create/edit posts to trusted administrators only

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin → Plugins → Installed Plugins for 'Show/Hide Shortcode' version 1.0.0 or earlier

Check Version:

wp plugin get showhide-shortcode --field=version

Verify Fix Applied:

Verify plugin version is 1.0.1 or later in WordPress admin panel

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests to wp-admin/post.php with suspicious JavaScript in parameters
  • Multiple failed login attempts followed by post creation/editing

Network Indicators:

  • Outbound connections to suspicious domains from your WordPress server
  • Unexpected JavaScript payloads in HTTP responses

SIEM Query:

source="wordpress.log" AND ("showhide" OR "shortcode") AND ("script" OR "javascript" OR "onclick" OR "onload")

🔗 References

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