CVE-2025-23444

6.5 MEDIUM

📋 TL;DR

This stored cross-site scripting (XSS) vulnerability in the Scroll Top Advanced WordPress plugin allows attackers to inject malicious scripts into web pages. When users view pages containing the malicious scripts, the attacker can steal session cookies, redirect users, or perform actions on their behalf. All WordPress sites using Scroll Top Advanced version 2.5 or earlier are affected.

💻 Affected Systems

Products:
  • WordPress Scroll Top Advanced plugin
Versions: n/a through 2.5
Operating Systems: All
Default Config Vulnerable: ⚠️ Yes
Notes: WordPress multisite installations are also affected. The vulnerability exists in the plugin's input handling.

⚠️ 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 session cookies, take over WordPress sites, install backdoors, deface websites, or redirect visitors to malicious sites.

🟠

Likely Case

Attackers inject malicious JavaScript that steals user session cookies or redirects visitors to phishing/malware sites when they view affected pages.

🟢

If Mitigated

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

🌐 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 inject malicious scripts. The vulnerability is stored/persistent, affecting all users who view the compromised pages.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 2.6 or later

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/scroll-top-advanced/vulnerability/wordpress-scroll-top-advanced-plugin-2-5-stored-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 Scroll Top Advanced. 4. Click 'Update Now' if update available. 5. If no update available, deactivate and delete plugin, then install fresh version 2.6+ from WordPress repository.

🔧 Temporary Workarounds

Disable vulnerable plugin

all

Temporarily disable the Scroll Top Advanced plugin until patched

wp plugin deactivate scroll-top-advanced

Apply WAF rules

all

Configure web application firewall to block XSS payloads targeting this plugin

🧯 If You Can't Patch

  • Restrict user roles - Only allow trusted administrators to access plugin settings
  • Implement Content Security Policy (CSP) headers to mitigate script execution

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin → Plugins → Scroll Top Advanced → Version. If version is 2.5 or earlier, you are vulnerable.

Check Version:

wp plugin get scroll-top-advanced --field=version

Verify Fix Applied:

After updating, verify version shows 2.6 or higher in WordPress plugins list.

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests to scroll-top-advanced admin endpoints containing script tags or JavaScript payloads
  • Multiple failed authentication attempts followed by successful contributor/admin login

Network Indicators:

  • HTTP requests containing malicious script payloads in parameters related to scroll-top-advanced

SIEM Query:

source="wordpress.log" AND ("scroll-top-advanced" OR "scroll_top_advanced") AND ("<script>" OR "javascript:" OR "onerror=" OR "onload=")

🔗 References

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