CVE-2025-46451

5.9 MEDIUM

📋 TL;DR

This stored cross-site scripting (XSS) vulnerability in the Floating Social Bar WordPress plugin allows attackers to inject malicious scripts into web pages. When exploited, these scripts execute in victims' browsers, potentially stealing session cookies or performing actions on their behalf. WordPress sites using vulnerable versions of this plugin are affected.

💻 Affected Systems

Products:
  • Floating Social Bar WordPress Plugin
Versions: n/a through 1.1.7
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: All WordPress installations with vulnerable plugin versions 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, deface websites, or redirect visitors to malicious sites.

🟠

Likely Case

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

🟢

If Mitigated

With proper input validation and output encoding, 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: 1.1.8 or later

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/floating-social-bar/vulnerability/wordpress-floating-social-bar-1-1-7-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 Floating Social Bar. 4. Click 'Update Now' if available. 5. Alternatively, download version 1.1.8+ from WordPress repository and manually update.

🔧 Temporary Workarounds

Disable Plugin

all

Temporarily disable the vulnerable plugin until patched.

wp plugin deactivate floating-social-bar

Content Security Policy

all

Implement CSP headers to restrict script execution sources.

Add to .htaccess: Header set Content-Security-Policy "default-src 'self'; script-src 'self'"
Add to nginx config: add_header Content-Security-Policy "default-src 'self'; script-src 'self'";

🧯 If You Can't Patch

  • Remove the Floating Social Bar plugin entirely from your WordPress installation.
  • Implement web application firewall (WAF) rules to block XSS payloads targeting this plugin.

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin → Plugins → Installed Plugins for Floating Social Bar version. If version is 1.1.7 or earlier, you're vulnerable.

Check Version:

wp plugin get floating-social-bar --field=version

Verify Fix Applied:

After updating, verify plugin version shows 1.1.8 or later in WordPress plugins list.

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests to plugin admin endpoints
  • JavaScript payloads in form submissions or URL parameters

Network Indicators:

  • HTTP requests containing script tags or JavaScript in parameters targeting plugin endpoints

SIEM Query:

source="*access.log*" AND ("floating-social-bar" OR "wp-content/plugins/floating-social-bar") AND ("<script" OR "javascript:" OR "onerror=" OR "onload=")

🔗 References

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