CVE-2025-31831

4.3 MEDIUM

📋 TL;DR

This CVE describes a Missing Authorization vulnerability in the AtomChat WordPress plugin that allows attackers to bypass access controls. Attackers can exploit incorrectly configured security levels to access restricted functionality. All WordPress sites running AtomChat version 1.1.6 or earlier are affected.

💻 Affected Systems

Products:
  • AtomChat WordPress Plugin
Versions: n/a through 1.1.6
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Affects all WordPress installations using vulnerable AtomChat plugin versions 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 access administrative functions, modify chat settings, view private conversations, or potentially escalate privileges within the WordPress environment.

🟠

Likely Case

Unauthorized users accessing chat management functions, viewing/modifying chat configurations, or accessing user data they shouldn't have permission to see.

🟢

If Mitigated

With proper authorization checks and role-based access controls, impact would be limited to authorized users only performing permitted actions.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Exploitation requires some level of access but can be performed by users with lower privileges than intended.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 1.1.7 or later

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/atomchat/vulnerability/wordpress-atomchat-plugin-1-1-6-broken-access-control-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find AtomChat plugin. 4. Click 'Update Now' if update available. 5. If no update available, download version 1.1.7+ from WordPress repository. 6. Deactivate old plugin. 7. Upload and activate new version.

🔧 Temporary Workarounds

Disable AtomChat Plugin

all

Temporarily disable the vulnerable plugin until patched

wp plugin deactivate atomchat

Restrict Plugin Access

all

Use WordPress role management to restrict who can access AtomChat settings

🧯 If You Can't Patch

  • Disable AtomChat plugin completely and use alternative chat solution
  • Implement web application firewall rules to block suspicious access patterns to AtomChat endpoints

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Plugins > Installed Plugins for AtomChat version. If version is 1.1.6 or earlier, you are vulnerable.

Check Version:

wp plugin get atomchat --field=version

Verify Fix Applied:

After updating, verify AtomChat plugin shows version 1.1.7 or higher in WordPress plugins list.

📡 Detection & Monitoring

Log Indicators:

  • Unauthorized access attempts to AtomChat admin endpoints
  • Users with low privileges accessing AtomChat management functions
  • Unusual POST/GET requests to /wp-admin/admin.php?page=atomchat

Network Indicators:

  • HTTP requests to AtomChat administrative endpoints from unauthorized IPs/users
  • Pattern of access attempts to restricted plugin functions

SIEM Query:

source="wordpress.log" AND (uri_path="/wp-admin/admin.php" AND query_string="*page=atomchat*") AND user_role!="administrator"

🔗 References

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