CVE-2025-66468
📋 TL;DR
This CVE describes a stored cross-site scripting (XSS) vulnerability in the Aimeos GrapesJS CMS extension. Malicious editors can inject JavaScript code that executes when other users view affected pages, potentially stealing session cookies or performing unauthorized actions. The vulnerability affects all versions prior to specific patched releases across multiple year branches.
💻 Affected Systems
- Aimeos GrapesJS CMS extension
⚠️ 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.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal administrator session cookies, take over CMS administration, deface websites, or redirect users to malicious sites, potentially leading to complete system compromise.
Likely Case
Malicious editors could inject scripts that steal user session data, perform actions on behalf of users, or modify page content without authorization.
If Mitigated
With Content Security Policy (CSP) properly enabled, the attack would be blocked, limiting impact to potential content manipulation by authorized editors.
🎯 Exploit Status
Exploitation requires editor-level access to inject malicious JavaScript. The vulnerability is straightforward to exploit once an attacker has editor privileges.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2021.10.8, 2022.10.8, 2023.10.8, 2024.10.8, or 2025.10.8 depending on your branch
Vendor Advisory: https://github.com/aimeos/ai-cms-grapesjs/security/advisories/GHSA-424m-fj2q-g7vg
Restart Required: No
Instructions:
1. Identify which Aimeos GrapesJS branch you're using (2021.x, 2022.x, 2023.x, 2024.x, or 2025.x). 2. Update to the corresponding patched version (2021.10.8, 2022.10.8, 2023.10.8, 2024.10.8, or 2025.10.8). 3. Verify the update was successful by checking the version.
🔧 Temporary Workarounds
Enable Content Security Policy
allEnsure the standard Content Security Policy is enabled and properly configured to block inline scripts and unauthorized script sources.
Restrict Editor Privileges
allLimit editor access to trusted users only and implement principle of least privilege for content editing roles.
🧯 If You Can't Patch
- Enable and properly configure Content Security Policy headers to block inline JavaScript execution
- Implement input validation and output encoding for all user-controllable content in the CMS
🔍 How to Verify
Check if Vulnerable:
Check your Aimeos GrapesJS version and compare against affected versions. If using version prior to 2021.10.8, 2022.10.8, 2023.10.8, 2024.10.8, or 2025.10.8, you are vulnerable if CSP is disabled.Check Version:
Check composer.json or package.json for the Aimeos GrapesJS version, or use the CMS administration interface if available.Verify Fix Applied:
Verify the installed version matches or exceeds the patched version for your branch and test that CSP headers are properly configured.📡 Detection & Monitoring
Log Indicators:
- Unusual content modifications by editors
- Multiple failed login attempts to editor accounts
- Suspicious JavaScript in page content
Network Indicators:
- Unexpected external script loads from CMS pages
- Suspicious outbound connections from user browsers after visiting CMS pages
SIEM Query:
source="web_server" AND (message="*editor*" AND message="*javascript*" OR message="*script*" AND status=200)