CVE-2025-30599

5.9 MEDIUM

📋 TL;DR

This stored cross-site scripting (XSS) vulnerability in the WP Parallax Content Slider WordPress plugin allows attackers to inject malicious scripts into web pages. When users view pages containing the malicious content, the scripts execute in their browsers. WordPress sites using vulnerable versions of this plugin are affected.

💻 Affected Systems

Products:
  • WP Parallax Content Slider WordPress Plugin
Versions: All versions up to and including 0.9.8
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: All WordPress installations with the vulnerable plugin version are affected regardless of configuration.

⚠️ 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, redirect users to malicious sites, or deploy malware to visitors' browsers.

🟠

Likely Case

Attackers inject malicious JavaScript to steal user session cookies or credentials, potentially compromising user accounts and site integrity.

🟢

If Mitigated

With proper input validation and output encoding, the malicious scripts would be neutralized before reaching users' browsers.

🌐 Internet-Facing: HIGH
🏢 Internal Only: LOW

🎯 Exploit Status

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

Stored XSS vulnerabilities are commonly exploited, though specific exploit details for this CVE aren't publicly documented.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 0.9.9 or later

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/wp-parallax-content-slider/vulnerability/wordpress-wp-parallax-content-slider-plugin-0-9-8-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 'WP Parallax Content Slider'. 4. Click 'Update Now' if available. 5. Alternatively, delete the plugin and install the latest version from WordPress repository.

🔧 Temporary Workarounds

Disable Plugin

all

Temporarily disable the vulnerable plugin until patched

wp plugin deactivate wp-parallax-content-slider

Content Security Policy

all

Implement CSP headers to restrict script execution

Add to .htaccess: Header set Content-Security-Policy "default-src 'self'; script-src 'self'"
Add to wp-config.php: header("Content-Security-Policy: default-src 'self'; script-src 'self'");

🧯 If You Can't Patch

  • Remove the WP Parallax Content Slider plugin completely from your WordPress installation
  • Implement a web application firewall (WAF) with XSS protection rules

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Plugins > Installed Plugins for WP Parallax Content Slider version 0.9.8 or earlier

Check Version:

wp plugin get wp-parallax-content-slider --field=version

Verify Fix Applied:

Verify plugin version is 0.9.9 or later in WordPress admin panel

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests to plugin admin pages
  • Suspicious JavaScript in database content fields

Network Indicators:

  • Malicious script payloads in HTTP requests to WordPress admin endpoints

SIEM Query:

source="wordpress.log" AND ("wp-parallax-content-slider" OR "parallax-slider") AND ("script" OR "javascript" OR "onclick" OR "onload")

🔗 References

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