CVE-2023-28990

4.3 MEDIUM

📋 TL;DR

This vulnerability allows authenticated WordPress users to activate arbitrary plugins without proper authorization in the Viral Mag theme. It affects all WordPress sites using Viral Mag theme versions up to 1.0.9.

💻 Affected Systems

Products:
  • HashThemes Viral Mag WordPress Theme
Versions: n/a through 1.0.9
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Requires WordPress installation with Viral Mag theme and at least one authenticated user account.

⚠️ 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

An authenticated attacker could activate malicious plugins to gain administrative privileges, execute arbitrary code, or establish persistent backdoors on the WordPress site.

🟠

Likely Case

Authenticated users (including subscribers) could activate plugins they shouldn't have access to, potentially gaining elevated privileges or disrupting site functionality.

🟢

If Mitigated

With proper user role management and plugin security controls, impact would be limited to unauthorized plugin activation without further escalation.

🌐 Internet-Facing: MEDIUM
🏢 Internal Only: LOW

🎯 Exploit Status

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

Exploitation requires authenticated access to WordPress. The vulnerability is publicly documented with technical details available.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 1.1.0 or later

Vendor Advisory: https://patchstack.com/database/wordpress/theme/viral-mag/vulnerability/wordpress-viral-mag-theme-1-0-9-authenticated-arbitrary-plugin-activation-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel
2. Navigate to Appearance > Themes
3. Check for Viral Mag theme updates
4. Update to version 1.1.0 or later
5. Alternatively, replace with a different theme

🔧 Temporary Workarounds

Remove Vulnerable Theme

all

Replace Viral Mag theme with a secure alternative

wp theme delete viral-mag
wp theme install [secure-theme-name] --activate

Restrict User Roles

all

Minimize authenticated user accounts and implement least privilege

🧯 If You Can't Patch

  • Disable or remove the Viral Mag theme immediately
  • Implement strict user access controls and monitor for suspicious plugin activation attempts

🔍 How to Verify

Check if Vulnerable:

Check WordPress theme version: In admin panel, go to Appearance > Themes and check Viral Mag version. If version is 1.0.9 or earlier, you are vulnerable.

Check Version:

wp theme list --field=name,status,version | grep viral-mag

Verify Fix Applied:

Verify Viral Mag theme version is 1.1.0 or later in Appearance > Themes section.

📡 Detection & Monitoring

Log Indicators:

  • Unauthorized plugin activation events in WordPress logs
  • User role escalation attempts
  • Unexpected plugin activation by non-admin users

Network Indicators:

  • HTTP POST requests to theme-specific endpoints with plugin activation parameters

SIEM Query:

source="wordpress.log" AND ("activated_plugin" OR "switch-theme") AND user_role!="administrator"

🔗 References

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