CVE-2024-12495

6.4 MEDIUM

📋 TL;DR

This stored XSS vulnerability in Bootstrap Blocks for WP Editor allows authenticated attackers with Contributor-level access or higher to inject malicious scripts into WordPress pages. When users visit compromised pages, the scripts execute in their browsers, potentially stealing credentials or performing unauthorized actions. All WordPress sites using this plugin up to version 2.5.0 are affected.

💻 Affected Systems

Products:
  • Bootstrap Blocks for WP Editor
Versions: All versions up to and including 2.5.0
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Requires WordPress with the vulnerable plugin installed. Contributor-level access or higher needed for exploitation.

⚠️ 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, deface websites, redirect users to malicious sites, or install backdoors for persistent access.

🟠

Likely Case

Attackers with contributor accounts inject malicious scripts to steal user session cookies or credentials, potentially escalating privileges.

🟢

If Mitigated

With proper user access controls and content filtering, impact is limited to defacement or minor data leakage from affected pages.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Exploitation requires authenticated access but is straightforward once an attacker has contributor privileges.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Versions after 2.5.0

Vendor Advisory: https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3213432%40wp-editor-bootstrap-blocks&new=3213432%40wp-editor-bootstrap-blocks&sfp_email=&sfph_mail=#file33

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'Bootstrap Blocks for WP Editor'. 4. Click 'Update Now' if available, or manually update to latest version. 5. Verify plugin version is above 2.5.0.

🔧 Temporary Workarounds

Remove Contributor Access

all

Temporarily restrict contributor-level users from creating or editing posts until patched.

Disable Plugin

all

Deactivate the Bootstrap Blocks for WP Editor plugin until updated.

🧯 If You Can't Patch

  • Implement strict user access controls and review all contributor accounts
  • Deploy web application firewall with XSS protection rules

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Plugins > Installed Plugins for Bootstrap Blocks for WP Editor version 2.5.0 or lower.

Check Version:

wp plugin list --name='Bootstrap Blocks for WP Editor' --field=version

Verify Fix Applied:

Confirm plugin version is above 2.5.0 in WordPress admin panel.

📡 Detection & Monitoring

Log Indicators:

  • Unusual post/page edits by contributor users
  • Suspicious script tags in post content

Network Indicators:

  • Unexpected outbound connections from WordPress pages
  • Script loading from unusual domains

SIEM Query:

source="wordpress" AND (event="post_edit" OR event="page_edit") AND user_role="contributor" AND content CONTAINS "<script>"

🔗 References

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