CVE-2025-49970

4.3 MEDIUM

📋 TL;DR

This CVE describes a Missing Authorization vulnerability in the Hello FSE Blog WordPress theme that allows attackers to bypass intended access controls. It affects all versions up to 1.0.6, potentially enabling unauthorized access to restricted functionality or data. WordPress sites using this theme are vulnerable.

💻 Affected Systems

Products:
  • sparklewpthemes Hello FSE Blog WordPress theme
Versions: n/a through 1.0.6
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Only affects WordPress installations with Hello FSE Blog theme active. Vulnerability exists in theme code, not core WordPress.

⚠️ 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 modify theme settings, inject malicious content, or access administrative functions leading to site compromise.

🟠

Likely Case

Unauthorized users accessing restricted theme features or modifying blog appearance/settings without proper permissions.

🟢

If Mitigated

Proper user role validation and authorization checks prevent any unauthorized access attempts.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Exploitation requires some WordPress user access but bypasses authorization checks. No public exploit code identified.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 1.0.7 or later

Vendor Advisory: https://patchstack.com/database/wordpress/theme/hello-fse-blog/vulnerability/wordpress-hello-fse-blog-theme-1-0-6-broken-access-control-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Appearance > Themes. 3. Find Hello FSE Blog theme. 4. Click 'Update Now' if update available. 5. If no update, download latest version from WordPress repository and manually upload.

🔧 Temporary Workarounds

Temporary Theme Deactivation

all

Switch to default WordPress theme until patch can be applied

WordPress Admin > Appearance > Themes > Activate different theme

User Role Restrictions

all

Tighten user permissions and implement additional access controls

Use WordPress role management plugins to restrict theme modification capabilities

🧯 If You Can't Patch

  • Implement web application firewall (WAF) rules to block unauthorized theme modification requests
  • Enable detailed logging of all theme-related actions and monitor for suspicious activity

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel: Appearance > Themes. If Hello FSE Blog version is 1.0.6 or earlier, system is vulnerable.

Check Version:

WordPress Admin > Appearance > Themes > Hello FSE Blog details

Verify Fix Applied:

After update, verify theme version shows 1.0.7 or later in WordPress admin panel.

📡 Detection & Monitoring

Log Indicators:

  • Unauthorized theme modification attempts
  • User role escalation attempts
  • Theme file changes by non-admin users

Network Indicators:

  • POST requests to theme admin endpoints from unauthorized users
  • Unusual theme-related API calls

SIEM Query:

source="wordpress" AND (event="theme_modified" OR event="capability_changed") AND user_role!="administrator"

🔗 References

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